Atyopsis moluccensis (De Haan, 1849)

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: 278-279

publication ID

http://doi.org/10.5281/zenodo.5333541

persistent identifier

http://treatment.plazi.org/id/0386A025-6959-5E36-A4B4-FE59C7A0D05B

treatment provided by

Diego

scientific name

Atyopsis moluccensis (De Haan, 1849)
status

 

Atyopsis moluccensis (De Haan, 1849)  

Atya moluccensis De Haan, 1849: 186   , Pl. O. [type locality unknown, assumedly from Moluccas, Indonesia].

Atyopsis moluccensis   – Chace, 1983: 27, Figs. 16 View Fig –19; Ng & Chong, 1986: 30, 1 fig.; Ng & Chia, 1994: 644, Figs. 1 View Fig , 3–10 View Fig View Fig View Fig View Fig View Fig View Fig View Fig View Fig ; Yeo et al., 1999: 213; Wowor et al., 341, Fig. 5D View Fig .

Atya armata Lanchester, 1901:559   .

Atya spinipes Johnson, 1961a: 145   , Figs. 38–42 (not Atya spinipes Newport, 1847   ).

Material examined. – Peninsular Malaysia: 6 males, 6 females (largest cl 19.8 mm), ZRC, Sungai Baharu tributary, along Tekek- Juara trail, Pulau Tioman, Malaysia, coll. O. Chia et al., 27 Jun.1997   : 5 males (largest cl 22.7 mm), ZRC, Tekek falls, Sungai Ayer Besar, along Tekek-Juara trail, Pulau Tioman, Malaysia, coll. O. Chia et al., 23 Jun.1997   ; 3 females, 6 juveniles (largest cl 20.6 mm), ZRC, Sungai Nipah , Pulau Tioman, Malaysia, coll. O. Chia et al., 27 Jun.1997   ; 6 males, 8 females, 7 juveniles (largest male cl 21.0 mm), ZRC, Sungai Keliling , Pulau Tioman, Malaysia, coll. H. H. Tan et al., 23–27 Jun.1997   ; 7 males, 12 females (largest male cl 26.9 mm), ZRC 1996.1776 View Materials , Sungai Paya, Kampung Paya, Pulau Tioman , Malaysia , coll. P. K. L. Ng et al., 16 Sep.1995   : 1 male, 1 female, 1 juvenile (largest cl 21.6 mm), ZRC 1996.1777 View Materials , Kampung Paya, Sungai Paya, Pulau Tioman , Malaysia, coll. H. H. Tan et al., 18 Sep.1995   ; 23 males, 26 females (largest male cl 28.0 mm), ZRC 1996.1778 View Materials , Sungai Paya, Kampung Paya, Pulau Tioman , Malaysia , coll. P. K. L. Ng et al., 25–27 Jun.1996   ; 9 males, 13 females (largest male cl 25.3 mm), ZRC 1996.1779 View Materials , Sungai Raya, Kampung Mukut, Pulau Tioman , Malaysia , coll. P. K. L. Ng et al., 26 Jun.1996   ; 12 males, 12 females (largest male cl 28.0 mm), ZRC 1996.1780 View Materials , Sungai Asah, Pulau Tioman , coll. P. K. L. Ng et al., 26 Jun.1996   ; 12 males, 17 females (largest male cl 28.0 mm), ZRC 1996.1781 View Materials , Sungai Keliling, Pulau Tioman, Malaysia , coll. P. K. L. Ng et al., 27–28 Jun.1996   ; 1 male, ZRC 2007.0318 View Materials , second last stream before reaching Juara along Tekek-Juara path, Pulau Tioman , Malaysia , coll. S. S. C. Chong, no date   ; 2 females, cl 4.8–5.6 mm, ZRC 2007.0319 View Materials , Sekayu waterfall, Terengganu, Malaysia , coll. H. H. Tan, 17 Jun.1995   ; 2 females, cl 5.4–5.5 mm, ZRC 2007.0320 View Materials , Malaysia, Stream outside Sekayu Waterfall , pH 5.3, coll. P. K. L. Ng, 18 Mar.1992   .

Comparative material examined. – Atyopsis moluccensis   : Sumatra: 1 male, cl 19 mm, 1 ovigerous female, cl 15 mm, ZRC 2007 View Materials . 0321, Sungai Seruai, near Biru Biru, Sumatra , Indonesia , coll. M. Kottelat, 2 Nov.1984   . Borneo: 2 males, cl 15.7–16.3 mm, 1 female, cl 16 mm, Sarawak: Kubah, Raya station 4, 1977   ; 2 females, cl 7.5–10.3 mm, ZRC 2007.0322 View Materials , Borneo: Sarawak, Austin’s Place , Kampung Benut near Penrissen , coll. H. H. Tan & P. Yap, 1 Oct.1998   ; 1 male, cl 13.2 mm, ZRC 2007.0323 View Materials , Brunei, Temburong, Sungai Dalalong at Kuala Beldeg , coll. K. Lim et. al., 14–17 Jun.1975   ; 1 male, cl 9.2 mm, ZRC 2007.0324 View Materials , Borneo, Sarawak: Serian , Sungai Kuhas , 6.9 km left at Tebelu Tebakang turnoff, 5.8 km into right trail, 1°09'10.0"N 110°29'22.7"E, coll. H. H. Tan, 19 Feb.1997 GoogleMaps   . Thailand: 2 females, cl 4.3–5.2 mm, CU1998.12, waterfall at Phuket, southern Thailand , no date   . 6 females, cl 18.4–20, CU1998.15, Taotong waterfall, Phangnga, 27 Mar.1930   ; 16 specimens, CU1998.16, southern Thailand , no date   ; 15 males, cl 13.2–20.6 mm, 13 females, cl 11.3–17.4 mm, ZRC 2007.0325 View Materials , Patong Waterfall, Phuket, southern Thailand , coll. K. Yongchindarat, 19 Aug.1980   ; 1 male, cl 7.5 mm, southern Thailand , coll. D. Yeo, 21 Feb.2001   .

Atyopsis spinipes ( Newport, 1847)   : Japan: l0 males, 10–15mm, 4 females, cl 15–18 mm, 2 ovigerous females, cl 14–15 mm, ZRC 2007.0326 View Materials 24°30.11'N 124°15.26'E, Gubyunmata River , Ishigaki Island, pH 7.3, coll. Y. Cai & T. Naruse, 13 Jun.2000 GoogleMaps   ; 1 female, cl 7.1 mm, ZRC 2007.0327 View Materials , 24°22.76'N 124°14.80'E, Gubyunmata River , Ishigaki Island, pH 7.3, coll. Y. Cai & T. Naruse, 13 Jun.2000 GoogleMaps   ; 1 male, cl 12 mm, 1 female, cl 15 mm, 1 ovigerous female, cl 16 mm, ZRC 2007.0328 View Materials , 24°26.05'N 124°14.52'E, small river in Tsuru Town , Ishigaki Island, coll. Y. Cai, N. K. Ng & T. Naruse, 17 Jun.2000 GoogleMaps   . Taiwan: 1 female, cl 5.1 mm, ZRC 2007.0329 View Materials , Tungho River , Taitung County, coll. Y. Cai et al., 24 Nov.1997   . Philippines: 2 females, cl 6.0– 7.2 mm, ZRC 2007.0330 View Materials , river outside Inabacan Cave , Antequrra, Bohol, coll. Y. Cai et al., 16 Dec.2000   . Java: 1 male, cl 7.1 mm   , 2 females, cl 3.8–4.0 mm, 3 juv., RMNH N42 View Materials a, Labuhan , West Java, Indonesia, no date   . Moluccas: 1 male, cl 9.2 mm, 1 ovigerous female, cl 13.0 mm, ZRC 2007.0331 View Materials , Sungai Ifis , 1°24'N 128°13'E, Halmahera, Indonesia, Sep.1994 GoogleMaps   , coll. D. Robb; 1 female, cl 6.8 mm, SMF 7972 View Materials , Halmahera , 1894, coll. W. Kükenthal; 1 ovigerous female, cl 12 mm   , 2 males, cl 9.0– 9.3 mm, SMF 7974 View Materials , Halmahera , Indonesia, 1894, coll. W. Kükenthal; 1 ovigerous female, cl 15 mm, Soah, Halmahera, Indonesia   , 2 males, cl 8.3–11.5 mm, SMF, Morotai, 1 Oct.1930   . New   Guinea: 2 females, cl 4.3–4.4 mm, RMNH 700 View Materials , two creeks near Seroei , Yapen Island, Irian Jaya, Indonesia, 22 Feb.1955   . Sulawesi: 1 female, cl 4.5 mm, 3 ovigerous females, cl 11.6–13.2 mm, ZRC 2007.0332 View Materials , Sungai Jalange at Desa Malawa , 20 km south of Parepare on road to Ujung Pandang, Kec. Malussetassi Kab. Bara, Sulawesi, Indonesia, coll. M. Kottelat, 15 Jun.1988   ; 4 males, cl 9.0– 9.5 mm, 7 females, cl 6.0– 14 mm, 1 ovigerous female, cl 18.1 mm, ZRC 2007.0333 View Materials , Sungai Terat , 19 km on road from Enrekang to Parepare, southern Sulawesi, Indonesia, coll. M. Kottelat & A. Werner, 9 Mar.1989   .

Diagnosis. – Body robust, pigmented, eyes well developed;

rostrum not strongly compressed laterally, without lateral lobes, median dorsal carina without spines, ventral keel with 7–16, usually 10–14 teeth. Anterior margin of carapace armed with strong antennal and pterygostomian spines, latter never reduced to angle; supraorbital spine absent; ventral margin of second to fifth abdominal pleura without sclerotized spinules; telson with posterolateral angle reaching beyond setiferous posterior margin; third maxilliped not ending in a spine; pereiopods without exopods; first and second pereiopods with chelae monomorphic, without palm, little if at all longer than wide; fingers tipped with brushes of long setae apparently adapted for filter feeding, carpus of both appendages deeply excavated anteriorly, much shorter than broad, shorter than fingers; third pereiopod with a prominent meral spur in large males; branchial formula complete, with 9 pairs of gills, without mastigobranchs; epipods present on first 4 pereiopods, reduced posteriorly; endopod of first pereiopod of male rigid, rhomboidally ovate; submarginally spinose, less than 1.5 times as long from proximal articulation to base of reticulation projection as maximum width, not including margin spines; second pleopod of male with appendix masculina cylindrical, spinose over entire length distal to base of appendix interna.

Habitat. – At coastal or insular freshwater habitats, with fast flowing hill and mountain streams, and similar riparian systems, living on rocks or among submerged roots.

Remarks. – In Malaysia, the species was first recorded by Lanchester (1901) from the Selama River in northwest Perak and Belimbing under the name of Atya armata   . Johnson reported it under the name Atya spinipes   from Kuala Kenyam Kechil, Pahang, Tahan River, near Kuala Tahan and a tributary of Jahor River, near Kota Tinggi, Johor. The specimens that we examined indicate that Atyopsis moluccensis   is restricted to the Greater Sunda Islands (including Phuket at southern Thailand). Chace (1983: 33) stated that he had “seen specimens of A. moluccensis   only from Thailand and Java.” Other distribution sites that he listed, viz. Sumatra, Bali, Sulawesi, Moluccas, Philippines, Andaman and Sri Lanka, were based only on literature. According to the present study, there is only A. spinipes   distributed there.

Distribution. – With certainty only distributed in the Greater Sunda Islands (present study).

ZRC

Zoological Reference Collection, National University of Singapore

T

Tavera, Department of Geology and Geophysics

RMNH

National Museum of Natural History, Naturalis

SMF

Forschungsinstitut und Natur-Museum Senckenberg

Kingdom

Animalia

Phylum

Arthropoda

Class

Malacostraca

Order

Decapoda

Family

Atyidae

Genus

Atyopsis

Loc

Atyopsis moluccensis (De Haan, 1849)

Cai, Yixiong, Ng, Peter K. L. & Choy, Satish 2007
2007
Loc

Atya spinipes

Johnson, D 1961: 145
1961