OCR Text |
Show 1906.] FRESH-WATER FISHES OF TRINIDAD. 389" a pair of barbels which are shorter than the diameter of eye ; barbels at the angle of the mouth extending to the base of pectoral fin. Exposed parts of the coracoids widely separated below. Scutes 2^, 2 or 3 unpaired ones in front of the spine of the adipose fin. Dorsal I 7 ; spine |-| the length of head ; anterior branched rays longest, | the length of head. Anal I 6, when laid back extending to base of caudal. Pectoral spine with serrated inner edge, extending nearly to or a little beyond the base of ventral. Caudal forked. Caudal peduncle much deeper than long. Head and upper part of body dark greenish ; lower parts abruptly lighter; fins pale yellow, the dorsal and caudal more or less dusky. Here described from 5 specimens, 65 m m . in total length, from Trinidad and Grenada. This fish has not yet been recorded from other localities. 20. PLECOSTOMUS GUACARI Lacep. Hab. Paraguay to Venezuela. 21. PLECOSTOMUS ROBINI C. k, V. Hab. Montevideo; Trinidad. 22. ANCISTRUS TRINITATIS Gthr. This little-known species may prove to be allied to A. bachi Bouleng. Apparently Liitken had a specimen of another species of this genus from Trinidad, which may be related to A. mega-cephalus Giinth. 23. XENOCARA CIRRHOSUM C. & V. " Bearded Teta." Hab. Paraguay to Venezuela. 24. SYMBRANCHUS MARMORATUS Bl. "Eel" or "Zangie." " They live in holes or under rocks or buried in the mud and come out in search of prey, especially after heavy rain. They lie among the dead leaves at the bottom of the pools and grab at the small fry as they pass. During the wet season they may often be seen lying perfectly still at the bottom of the pools. " Colour : greenish or yellowish, spotted with brownish." Hab. Tropical America. 25. HAPLOCHILUS HARTI Blgr. (Plate XXI. fig. 2.) " Small Guabin." ^ Depth of body 4J-5| in the length, length of head 3|-4. Snout a little shorter than eye, the diameter of which is H~H in tne length of head, interorbital breadth l|-2. Maxillary not extending to below the eye ; jaws equal anteriorly |