Archives
v12i1.298ISSN: 1800-427X (printed)
eISSN: 1800-427X (online)
DOI:10.47605/tapro.v12i1.298
Submitted date: 24 June 2022
Accepted date: 23 April 2023
Published date: 12 May 2023
Pp. 24–25, pls. 13–14
First description of male long-jawed orb-weaver spider (Tylorida flava)
K.B. Anju* & A.V. Sudhikumar
*Corresponding author. E-mail: anjukbaby07@gmail.com
The long-jawed orb-weavers of the family Tetragnathidae are a cosmopolitan spider clade, particularly diverse in humid tropical and subtropical areas of the world. The subfamily Leucauginae comprises six genera and the genus Tylorida Simon, 1894 includes eight species. Four of them are reported from India and a comprehensive revision of Indian species was published by Sankaran et al. (2017) with a description of T. flava as a new species but based only on a female specimen. Here, the male T. flava is described for the first time along with illustrations of the genitalia.
Section Editor: Akio Tanikawa
eISSN: 1800-427X (online)
DOI:10.47605/tapro.v12i1.298
Submitted date: 24 June 2022
Accepted date: 23 April 2023
Published date: 12 May 2023
Pp. 24–25, pls. 13–14
First description of male long-jawed orb-weaver spider (Tylorida flava)
K.B. Anju* & A.V. Sudhikumar
*Corresponding author. E-mail: anjukbaby07@gmail.com
The long-jawed orb-weavers of the family Tetragnathidae are a cosmopolitan spider clade, particularly diverse in humid tropical and subtropical areas of the world. The subfamily Leucauginae comprises six genera and the genus Tylorida Simon, 1894 includes eight species. Four of them are reported from India and a comprehensive revision of Indian species was published by Sankaran et al. (2017) with a description of T. flava as a new species but based only on a female specimen. Here, the male T. flava is described for the first time along with illustrations of the genitalia.
Section Editor: Akio Tanikawa
v12i1.297ISSN: 1800-427X (printed)
eISSN: 1800-427X (online)
DOI:10.47605/tapro.v12i1.297
Submitted date: 6 Dec 2022
Accepted date: 10 May 2023
Published date: 12 May 2023
Pp. 23, pl. 12
A rock python (Python molurus) predates on a porcupine (Hystrix indica)
H. Aththanayaka, S.L. Prakash & S. Karunarathna*
*Corresponding author. E-mail: suranjan.karu@gmail.com
The endemic Sri Lankan subspecies of rock python, Python molurus pimbura is the largest snake found in Sri Lanka. Though distributed island wide, it is listed as Near Threatened due to the rapid population decline. This is a common victim of illegal trade (as pets and for skin/meat). The prey items of the rock python are poorly documented, but it is not unusual for them to take difficult prey such as porcupines. In India, Bhupathy & Vijayan (1989) observed 14% of the python diet was porcupines, but this is a rare observation for Sri Lanka. The Indian crested porcupine, Hystrix indica is the largest and a most widely distributed rodent in Sri Lanka. They live in large burrows dug deep into the ground and give birth to 2–4 young at a time. Predations on porcupines are rare because of their sharp quills, so predators do not attack unless starving.
Section Editor: Thasun Amarasinghe
eISSN: 1800-427X (online)
DOI:10.47605/tapro.v12i1.297
Submitted date: 6 Dec 2022
Accepted date: 10 May 2023
Published date: 12 May 2023
Pp. 23, pl. 12
A rock python (Python molurus) predates on a porcupine (Hystrix indica)
H. Aththanayaka, S.L. Prakash & S. Karunarathna*
*Corresponding author. E-mail: suranjan.karu@gmail.com
The endemic Sri Lankan subspecies of rock python, Python molurus pimbura is the largest snake found in Sri Lanka. Though distributed island wide, it is listed as Near Threatened due to the rapid population decline. This is a common victim of illegal trade (as pets and for skin/meat). The prey items of the rock python are poorly documented, but it is not unusual for them to take difficult prey such as porcupines. In India, Bhupathy & Vijayan (1989) observed 14% of the python diet was porcupines, but this is a rare observation for Sri Lanka. The Indian crested porcupine, Hystrix indica is the largest and a most widely distributed rodent in Sri Lanka. They live in large burrows dug deep into the ground and give birth to 2–4 young at a time. Predations on porcupines are rare because of their sharp quills, so predators do not attack unless starving.
Section Editor: Thasun Amarasinghe
v12i1.296ISSN: 1800-427X (printed)
eISSN: 1800-427X (online)
DOI:10.47605/tapro.v12i1.296
Submitted date: 6 July 2022
Accepted date: 1 January 2023
Published date: 12 May 2023
Pp. 14–22, pls. 7–11.
FRESHWATER GASTROPOD COMPOSITION AND THE KEY ENVIRONMENTAL DETERMINANTS IN HULU GANGA AND MA OYA RIVER BASINS OF SRI LANKA
P.H. Liyanagedara, W.M.C.S. Wijesundara, M.W.S.K. Yatigammana & S. Kumburegama*
*Corresponding author. E-mail: shalikak@sci.pdn.ac.lk
Abstract
The present study determined the distribution of freshwater gastropods in relation to several environmental variables, in two tributaries of the Mahaweli River, Hulu Ganga and Ma Oya in the Central Province of Sri Lanka. Pearson’s Correlation and a multivariate statistical technique, Canonical Correspondence Analyses (CCA) were used to explore the environmental variables responsible for the species composition. In total eight species of gastropods were recorded. The most influential factors for the four species recorded in Hulu Ganga were dissolved oxygen (DO), total dissolved solids, conductivity and elevation, whereas in Ma Oya they were pH, conductivity, DO and temperature. The results of CCA show that measured environmental variables explained 95.76% of the variation in gastropod abundance in Hulu Ganga, but only 60.63% was explained in Ma Oya. Hence, there may be other unmeasured environmental factor(s) that influence the diversity and distribution of gastropods in Ma Oya.
Key words : Abundance, aquatic habitat, distribution, environmental factors, freshwater snails
Section Editor: Thasun Amarasinghe
eISSN: 1800-427X (online)
DOI:10.47605/tapro.v12i1.296
Submitted date: 6 July 2022
Accepted date: 1 January 2023
Published date: 12 May 2023
Pp. 14–22, pls. 7–11.
FRESHWATER GASTROPOD COMPOSITION AND THE KEY ENVIRONMENTAL DETERMINANTS IN HULU GANGA AND MA OYA RIVER BASINS OF SRI LANKA
P.H. Liyanagedara, W.M.C.S. Wijesundara, M.W.S.K. Yatigammana & S. Kumburegama*
*Corresponding author. E-mail: shalikak@sci.pdn.ac.lk
Abstract
The present study determined the distribution of freshwater gastropods in relation to several environmental variables, in two tributaries of the Mahaweli River, Hulu Ganga and Ma Oya in the Central Province of Sri Lanka. Pearson’s Correlation and a multivariate statistical technique, Canonical Correspondence Analyses (CCA) were used to explore the environmental variables responsible for the species composition. In total eight species of gastropods were recorded. The most influential factors for the four species recorded in Hulu Ganga were dissolved oxygen (DO), total dissolved solids, conductivity and elevation, whereas in Ma Oya they were pH, conductivity, DO and temperature. The results of CCA show that measured environmental variables explained 95.76% of the variation in gastropod abundance in Hulu Ganga, but only 60.63% was explained in Ma Oya. Hence, there may be other unmeasured environmental factor(s) that influence the diversity and distribution of gastropods in Ma Oya.
Key words : Abundance, aquatic habitat, distribution, environmental factors, freshwater snails
Section Editor: Thasun Amarasinghe
v12i1.295ISSN: 1800-427X (printed)
eISSN: 1800-427X (online)
DOI:10.47605/tapro.v12i1.295
Submitted date: 18 March 2023
Accepted date: 3 May 2023
Published date: 12 May 2023
Pp. 5–13, pls. 4–6.
A NEW RUPICOLOUS DAY GECKO SPECIES (SQUAMATA: GEKKONIDAE: Cnemaspis) FROM TAMIL NADU, SOUTH INDIA
Amit Sayyed*, Samson Kirubakaran, Rahul Khot, Anbazhagan Abinesh, Shiva Harshan, Ayaan Sayyed, Masum Sayyed, Omkar Adhikari, Jayaditya Purkayastha,
Shubhankar Deshpande & Shauri Sulakhe
*Corresponding author. E-mail: amitsayyedsatara@gmail.com
Abstract
We here describe a new rupicolous day gecko species nested within the C. gracilis clade from Madurai, Tamil Nadu, India. The new species differs with a combination of morphological characters and molecular phylogenetics, from other closely related congeners. The sequence divergence of the new species in comparison with the congeners from the gracilis clade is 6.1–15.2% for the ND2 gene. The new species can also be differentiated from the congeners based on the following combination of morphological characters: conical and spine-like tubercles absent on flanks; adult SVL less than 35.0 mm; two precloacal pores; precloacal pores separated medially by two poreless scales; four femoral pores; number of mid-ventral scales 110–120; and a small black colour spot on the occiput.
Key words : dwarf geckos, [i]gracilis[.i[ clade, molecular phylogeny, ND2, rock-dwelling, systematics
Section Editor: Zeeshan Mirza
LSID:urn:lsid:zoobank.org
eISSN: 1800-427X (online)
DOI:10.47605/tapro.v12i1.295
Submitted date: 18 March 2023
Accepted date: 3 May 2023
Published date: 12 May 2023
Pp. 5–13, pls. 4–6.
A NEW RUPICOLOUS DAY GECKO SPECIES (SQUAMATA: GEKKONIDAE: Cnemaspis) FROM TAMIL NADU, SOUTH INDIA
Amit Sayyed*, Samson Kirubakaran, Rahul Khot, Anbazhagan Abinesh, Shiva Harshan, Ayaan Sayyed, Masum Sayyed, Omkar Adhikari, Jayaditya Purkayastha,
Shubhankar Deshpande & Shauri Sulakhe
*Corresponding author. E-mail: amitsayyedsatara@gmail.com
Abstract
We here describe a new rupicolous day gecko species nested within the C. gracilis clade from Madurai, Tamil Nadu, India. The new species differs with a combination of morphological characters and molecular phylogenetics, from other closely related congeners. The sequence divergence of the new species in comparison with the congeners from the gracilis clade is 6.1–15.2% for the ND2 gene. The new species can also be differentiated from the congeners based on the following combination of morphological characters: conical and spine-like tubercles absent on flanks; adult SVL less than 35.0 mm; two precloacal pores; precloacal pores separated medially by two poreless scales; four femoral pores; number of mid-ventral scales 110–120; and a small black colour spot on the occiput.
Key words : dwarf geckos, [i]gracilis[.i[ clade, molecular phylogeny, ND2, rock-dwelling, systematics
Section Editor: Zeeshan Mirza
LSID:urn:lsid:zoobank.org
v12i1.294ISSN: 1800-427X (printed)
eISSN: 1800-427X (online)
DOI:10.47605/tapro.v12i1.294
Submitted date: 10 June 2022
Accepted date: 1 December 2022
Published date: 12 May 2023
Pp. 1–4, pls. 1–3.
DESCRIPTION OF A NEW WOLF SPIDER SPECIES (ARACHNIDA: ARANEAE: LYCOSIDAE: Draposa) FROM WESTERN GHATS, INDIA
Raveendran Sudha Abhijith & Ambalaparambil Vasu Sudhikumar*
*Corresponding author. E-mail: spidersudhi@gmail.com
Abstract
Draposa is a relatively newly described wolf spider genus numbering 11 species, out of which eight have been reported from India. A new Draposa species from Kerala, Western Ghats, India, is described, photographed and illustrated. The male palp of the new species is similar to that of D. lyrivulva distributed in Pakistan, India and Sri Lanka, but it differs by having the following combination of characters: shorter tegular apophysis with a narrow and linear tip, prominent sub-apical protrusion, and embolus parallel to tegular apophysis.
Key words : Arachnida, distribution, Kerala, Pardosa, South Asia, taxonomy
Section Editor: Francesco Ballarin
LSID:urn:lsid:zoobank.org
eISSN: 1800-427X (online)
DOI:10.47605/tapro.v12i1.294
Submitted date: 10 June 2022
Accepted date: 1 December 2022
Published date: 12 May 2023
Pp. 1–4, pls. 1–3.
DESCRIPTION OF A NEW WOLF SPIDER SPECIES (ARACHNIDA: ARANEAE: LYCOSIDAE: Draposa) FROM WESTERN GHATS, INDIA
Raveendran Sudha Abhijith & Ambalaparambil Vasu Sudhikumar*
*Corresponding author. E-mail: spidersudhi@gmail.com
Abstract
Draposa is a relatively newly described wolf spider genus numbering 11 species, out of which eight have been reported from India. A new Draposa species from Kerala, Western Ghats, India, is described, photographed and illustrated. The male palp of the new species is similar to that of D. lyrivulva distributed in Pakistan, India and Sri Lanka, but it differs by having the following combination of characters: shorter tegular apophysis with a narrow and linear tip, prominent sub-apical protrusion, and embolus parallel to tegular apophysis.
Key words : Arachnida, distribution, Kerala, Pardosa, South Asia, taxonomy
Section Editor: Francesco Ballarin
LSID:urn:lsid:zoobank.org
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