41 



Gastrotokeus Maculeatus Bleekei', Nat. Tijdschr. Ned. Indie XV. 1858, p. 204. 

 Gastrotokeus biaculeatus Dumeril, Hist. nat. Poissons II. 1870, p. 528. 

 Gastrotokeus biaculeatus Giinther. Cat. Brit. Mus. VIII. 1870, p. 194. 

 Gastrotokeus biaculeatits Klunzinger, Abhandl. zool.-bot. Gesellsch. Wien XXI. 



1871, p. 653. 



Gastrotokeus biaculeatus Day, Fishes of India 4, 1878 1888, p. 68 1. 

 Gastrotokeus biaculeatus Duncker, Spolia Zeylanica vol. VII. Prt. XXV. 1910, 



p. 25. Mitt. a. d. naturh. Mus. Hamburg, XXXII. 1915, p. 38. 

 Syngnathoides biaculeatus Me Culloch, Check-List of the fish of New South 



Wales 1919, p. 27. 



D. 37 50; A. 4 6; P. 20 23; Rings 15 17 + 40 54; sub- 

 dorsal rings I 2 -f 8 10. 



Shields transversally striated, wanting totally in rings of 

 posterior half or third of tail and ventrally in some of the 

 preceding rings. Skin often with numerous longer or shorter 

 branched filaments forming 

 at the chin a pair of branched 

 barbels. Operculum radially 

 striated without keel. Origin 

 of dorsal nearly opposite to 



vent. Pale green or brown, 



Fig. 19. Syngnathoides biaculeatus (Bl.) 

 dark brown spots ventrally Head of a specimen of I5I mm . x ll/2 . 



along the median cristae of the 



trunk. Length 260 mm. Females somewhat shorter than males. 



c5 



Habitat: Singapore; Sumatra; Pulu Weh ! ; Nias ! ; Banka; 

 Bintang!; Borneo (Balikpapan ! ; East coast!); Java; Bawean; 

 Celebes (Minahassa!, Menado, Makassar!); Saleyer!; Island Biaru!; 

 Sawan; Island Siau ! ; Batjan!; Buru ; Manipa ! ; Ambon!; Nusa 

 Laut!; Saparua; Ceram ! ; Banda; Ternate!; Halmahera!; Wai- 

 geu!; Schouten Islands; Misore ; West Doffer ! ; Goram ; New 

 Guinea!; Aru!; Flores!; Adonara!; Solor; Samau!; Sumba!. - 

 Red Sea, Zanzibar, Mozambique, Madagascar, Seychelles, 

 Malgassy Islands, Gulf of Manaar, British India, Andamans, 

 Ceylon, Pinang, Malayan Peninsula, Siam, Philippines, Southern 

 China, Japan, Australia, Pacific Islands to Samoa. Reaching 

 therefore from East Africa to Samoa, northwards to Riu Kiu 

 Islands, southwards to South Australia. 



Marine, living in shallow water; a bad swimmer, probably 

 attached to marine plants. 



2. Acanthognathus Duncker. 



(DuNCKER, Mitt. a. d. Naturhist. Museum Hamburg, 1912, p. 228). 

 Corythoichthys Kaup, Cat. Lophobranchiate Fish, 1856, p. 25 (p.p.)- 



