Caridina elongapoda Liang & Yan, 1977

Cai, Yixiong, Ng, Peter K. L. & Choy, Satish, 2007, Freshwater Shrimps Of The Family Atyidae (Crustacea: Decapoda: Caridea) From Peninsular Malaysia And Singapore, Raffles Bulletin of Zoology 55 (2), pp. 277-309 : 285

Caridina elongapoda Liang & Yan, 1977

Caridina nilotica elongapoda Liang & Yan, 1977: 220 , Figs.5–8 [type locality: Xinzai , Gulei village, Zhangpu County, Fujian, southern China].

Caridina aff. brachydactyla – Yeo et al., 1999: 218, Figs.10–14 .[not C. brachydactyla De Man, 1892 ]

Caridina longirostris – Chace, 1997: 14 (part), Fig. 6 [not C. longirostris H. Milne Edwards, 1837 ]

Caridina elongapoda – Cai & Shokita, 2006a: 249.

Material examined. – Peninsular Malaysia: 28 specimens, ZRC 1998.865 , Sungai Asah , coll. P. K. L. Ng et al., 24 Jun.1997 ; 1 specimen, Monkey Bay, Pulau Tioman , coll. H. H. Tan et al., 25 Jun.1997 ; 4 specimens, ZRC 1998.866 , Sungai Raya, Pulau Tioman , coll. D. C. J. Yeo et al., 26 Jun.1997 ; 120 specimens, ZRC 1998.867 , Sungai Mentawak, Pulau Tioman , coll. Y. Cai, 24 Jun.1997 ; 105 specimens, ZRC 1998.868 , Sungai Keliling , coll. Y. Cai et al., 27 Jun.1997 ; 53 specimens, ZRC 1998.869 , Sungai Paya, Pulau Tioman , coll. P. K. L. Ng et al., 25 Jun.1997 ; 50 specimens, ZRC 1998.870 , Sungai Nipah, Pulau Tioman , coll. Y. Cai, 24 Jun.1997 ; 65 specimens, ZRC 1998.871 , Sungai Salang, Pulau Tioman, Malaysia , coll. Y. Cai et al., 25 Jun.1997 ; 23 specimens, ZRC 1996.1756 , Sungai Keliling, Pulau Tioman, Malaysia , coll. P. K. L. Ng et al., 27–28 Jun.1996 ; 51 specimens, ZRC 1996.1757 , Sungai Raya, Kampung Mukut, Pulau Tioman , coll. P. K. L. Ng et al., 26 Jun.1996 ; 2 specimens, ZRC 1996.1758 , Sungai Ayer Besar, stream along Tekek-Juara trail, Pulau Tioman , coll. P. K. L. Ng et al., 24–25 Jun.1996 ; 10 specimens, ZRC 1996.1759 , left stream at mouth of Sungai Paya, Pulau Tioman , coll. O. Chia & M. J. Ng, 27 Jun.1996 ; 66 specimens, ZRC 1996.1760 , Sungai Nipah, Pulau Tioman , coll. D. C. J. Yeo et al., 28 Jun.1996 ; 125 specimens, ZRC 1996.1761 , Sungai Paya, Kampung Paya, Pulau Tioman , coll. P. K. L. Ng et al., 25–27 Jun.1996 ; 16 specimens ( ZRC 1996.1762 ), Kampung Paya, Sungai Pasal upstream (about 15 min walk from start of trail to Sungai Paya), Pulau Tioman, coll. H. H. Tan et al., 17 Sep.1995 ; 19 specimens, ZRC 1996.1763 , Kampung Genting, Sungai Ayer Raja, Pulau Tioman , coll. P. K. L. Ng et al., 15 Sep.1995 ; 10 specimens, ZRC 1996.1764 , Sungai Paya upstream, near base of Bukit Paya , coll. H. H. Tan et al., 17 Sep.1995 ; 3 specimens, ZRC 1996.1765 , Sungai Ayer Besar waterfall, on Tekek-Juara trail, Pulau Tioman , coll. P. K. L. Ng et al., 16 Sep.1995 ; 4 specimens, ZRC 1990.11847 – 11850 , Genting, Pulau Tioman , Pahang, coll. S. S. C. Chong, 28 Jun.1986 ; 3 specimens, ZRC 1990.11857 – 11859 , last stream enroute to Juara, Pulau Tioman , Pahang, coll. S. S. C. Chong, 30 Jun.1986 ; 6 specimens, ZRC 1990.11864 – 11869 , Kampung Mukut, Pulau Tioman , coll. S. S. C. Chong, 28 Jun.1986 ; 2 specimens, ZRC 1990.11870 – 11871 , ca. 100 m a.s.l. Waterfall at south of Mukut waterfall, Pulau Tioman, coll. S. S. C. Chong, 27 Jun.1986 . 10 males, cl. 2.8–3.2mm, 27 females, cl.3.5–5.0, ZRC 1998.872 , Sungai Keliling, Pulau Tioman , coll. Y. Cai & N. K. Ng, 8–11 Sep.1998 ; 1 female, cl 3.6 mm, 2 ovigerous females, cl 3.7–3.8 mm, ZRC 1990.11847 – 11853 , Sungai Genting, Pulau Tioman, 28 Jul.1986 ; 19 males, cl 2.7–3.8 mm, 5 females, cl 3.5–4.7 mm, 29 ovigerous females, cl 3.5–4.7 mm, ZRC 2007.0371 , Kg. Mukut, Pulau Tioman, 28 Jun.1986 ; 2 ovigerous females, cl 5.1–5.2 mm, ZRC 2007.0372 , ca. 100m above see level, waterfall in stream south of Mukut waterfall, Pulau Tioman, coll. S. S. C. Chong, 27 Jun.1985 ; 8 males, cl 3.0– 3.2 mm, 11 females, cl 3.2–4.1 mm, ZRC 2007.0373 , stream on east ridge Pulau Redang, 24 Jun.1992 .

Remarks. – Cai & Shokita (2006a) recently reported C. elongapoda from the Philippines and referred the Pulau Tioman material reported by Yeo et al. (1999) to this species.

Distribution. – China, Malaysia, the Philippines (Cai & Shokita, 2006a)

Figures

Fig. 5. Caridina propinqua: A, cephalothorax and cephalic appendages; B, pre-anal carina; C, scaphocerite; D, first pereiopod; E, second pereiopod; F, third pereiopod; G, dactylus of third pereiopod; H, fifth pereiopod; I, dactylus of fifth pereiopod; J, diaeresis. Scale bars: A, C = 1 mm; B, D–F, H = 0.5 mm; G, I, J = 0.2 mm. (female, cl. 3.7 mm, Sungei Mandai, Singapore, ZRC).

Fig. 6. Caridina propinqua: A, cephalothorax and cephalic appendages; B, scaphocerite; C, mandible; D, maxillula; E, maxilla; F, first maxilliped; G, second maxilliped; H, third maxilliped; I, first pereiopod; J, second pereiopod; K, third pereiopod; L, fifth pereiopod; M, endopod of male first pleopod; N, appendix masculina and appendix interna of male second pleopod. Scale bars: A, B = 1 mm; C–L = 0.5 mm; M, N = 0.2 mm. (male, cl 2.9 mm, Sungai Sedili, Johor, Peninsular Malaysia, ZRC).

Fig. 7. Caridina sumatrensis: A, cephalothorax and cephalic appendages; B, distal portion of telson; C, first pereiopod; D, second pereiopod; E, third pereiopod; F, dactylus of third pereiopod; G, fifth pereiopod; H, dactylus of fifth pereiopod; I, male first pleopod; J, male second pleopod. Scale bars: A = 1 mm; C–E, G = 0.5 mm; B, F, H, I, J = 0.2 mm. (male, cl 3.7 mm, Sungai Telor, Peninsular Malaysia, ZRC).

Fig. 8. Caridina thambipillaii: A, cephalothorax and cephalic appendages; B, telson; C, distal portion of telson; D, mandible; E, maxillula; F, maxilla; G, first maxilliped; H, second maxilliped; I, third maxilliped; J, preanal carina; K, diaeresis; L, scaphocerite. Scale bars: A = 1 mm, B, D–J = 0.5 mm; C, K = 0.2 mm. (A–C, female, cl 5.9 mm, D–K, ovigerous female, cl 5.7 mm; all material from Sungai Stunggang, Sarawak, East Malaysia, ZRC).

Fig. 10. Caridina thambipillaii: A, cephalothorax and cephalic appendages; B, first pereiopod; C, second pereiopod; D, third pereiopod; E, dactylus of third pereiopod; F, endopod of male first pleopod; G, male second pleopod. Scale bars: A = 1 mm; B–D = 0.5 mm; E – G=0.2 mm. (male, cl 3.3 mm, Sungai Stunggang, Sarawak, East Malaysia, ZRC).

Fig. 11. Caridina excavatoides: A, cephalothorax and cephalic appendages; B, telson; C, distal portion of telson; D, maxilla; E, first maxilliped; F, second maxilliped; G, third maxilliped; H, first pereiopod; I, second pereiopod; J, scaphocerite; K, preanal carina; L, diaeresis. Scale bars: A, J = 1 mm; B, D–I, K = 0.5 mm; C, L = 0.2 mm. (ovigerous female, cl 2.8 mm, Sungai Besar, Kuantan, Peninsular Malaysia, ZRC).

Fig. 12. Caridina excavatoides: A, cephalothorax and cephalic appendages; B, first pereiopod; C, second pereiopod; D, third pereiopod; E, dactylus of fifth pereiopod; F, fifth pereiopod; G, dactylus of fifth pereiopod; H, male first pleopod; I, male second pleopod. Scale bars: A = 1 mm; B–D, F = 0.5 mm; E, G = 0.1 mm, H, I = 0.2 mm. (A–C, H, I, male, cl 2.6 mm; D–G, ovigerous female, cl 2.8 mm; all material from Sungai Besar, Kuantan, Peninsular Malaysia, ZRC).

Fig. 13. Caridina temasek: A, cephalothorax and cephalic appendages; B, first pereiopod; C, first pereiopod; D, second pereiopod; E, third pereiopod; F, dactylus of third pereiopod; G, fifth pereiopod; H, dactylus of fifth pereiopod; I, preanal carina. Scale bars: A = 1 mm; B–E, F, I = 0.5 mm; F, H = 0.1 mm. (ovigerous female, cl 3.9 mm, Sime Road, Singapore, ZRC).

Fig. 14. Caridina temasek Penang: A, B, cephalothorax and cephalic appendages; C, distal portion of telson; D, preanal carina; E, F, first pereiopod; G, second pereiopod; H, third pereiopod; I, dactylus of third pereiopod; J, fifth pereiopod; K, dactylus of fifth pereiopod; L, uropodal diaeresis. Scale bars: A, B = 1 mm; E–H, J = 0.5 mm; C, I, L, K = 0.2 mm. (female, cl 3.4 mm, Penang, Peninsular Malaysia, ZRC).