﻿297 



Height 49; head about 12, 3.8 times in trunk; head and 

 trunk one and a half times in length of tail. Eye about 15, 

 twice or more in snout. Snout depressed, somewhat pointed. 

 Posterior nostrils slightly before eye, anterior nostrils in a tube 

 nearly equal to length of eye. oq o\ q% 



Cleft of mouth reaching far o^Oo ^ §11 ?^^| 



behind eye, about thrice in o^o^oC^oo °o?°o° °o%^^ 



io°0 0% %± ggpo ??§o 



'o°0°o %-/. 



length of head. Dorsal com- 

 mencing about half length of 0°°°/ oo°o°o° 



°o?° oOOg "oo'io o°<>o Oq"" 



head behind gillopenings. 1,°^?° sggS^" °g°=° sfo°° >o°o 



Dorsal and especially the anal °jf "4'°°}° ""''^ °°°°° °°° 



elevated, the latter being as ti- °fiofI° ""- ^ 



deep as the body, ending at ff^° 



a short distance from end of °i° 



tail. Pectorals 4 times in head. Fig. 139. Dentition of Pisoodonophis 



Teeth granular, in several /0'/^^-/''/^^v-'...« teeth on intermaxillary plate, 

 ^ . , ,. 1 , 1 "^ maxillary, iiui mandibulary, v vomerine 



series, tormmgbroadish bands. ^^^^^l^ ^^ ^ 



The vomerine band much 



longer than the maxillary bands. On the intermaxillary plate 

 an oval group of about 12 teeth, contiguous with the maxil- 

 lary and the vomerine band of teeth. Greenish, fins yellowish. 

 Length more than 750 mm. [Type of the species in the British 

 Museum seen by us]. 



Habitat: Borneo (Banjermassin !); — Ponape. 



Ascending rivers. 



2. Pisoodonophis boro (Ham. Buch.) [Fig. 138, on p. 296]. 



Ophisuriis boro Hamilton Buchanan, Fish. Ganges 1822, p. 20, 363. 

 Ophisurus harancha Hamilton Buchanan, Ibid. p. 21, 363. 

 Opkisurtis caudatus McClelland, Calcutta Journ. Nat. Hist. V. 1844, p. 211. 

 Ophisurus boro Cantor, Journ. Asiat. Soc. Bengal XVHI. 1850, p. 1304. 

 Ophisurus boro Bleeker, Verb. Batav. Gen. XXV. 1853, Bengalen p. 156. 

 Ophisurus potamophilus Bleeker, Nat. Tijdschr. Ned. Indie V, 1853, p. 458. — 



Verb. Batav. Gen. XXV. 1852, Muraenoid. p. 68. 

 Pisoodonophis boro Kaup, Cat. Apod, fish 1856, p. 17. 

 Pisoodonophis potamophilus Kaup, Ibid. p. 20. 

 Pisoodonophis boro Bleeker, Atl. Ichth. IV. 1864, p. 62. 

 Pisoodonophis potamophilus Bleeker, Ibid. p. 63. 

 Ophichthys boro Gunther, Cat. Brit. Mus. VIII. 1870, p. 77. 

 Ophichthys boro Day, Fish. India 4°. 1878 — 88, p. 664. 

 Ophichthys boro Max Weber, Siboga-Expeditie, Fische, 1913, p. 51. 



Height 32 — 16\ head 9 — '12.5, 3.2 — 3.6 in trunk, head and 

 trunk more or less than i '/^ times in tail. Eye 12 — 17 (13.3 in 



