72 Mr. C. T. Regan on the Fishes of the 



with 3 series of scales ; 7 or 8 gill-rakers on tlie lower part 

 of anterior arch. Scales 26-28 ■^^, 1 between lateral line 

 and base of anterior part of soft dorsal. Dorsal XV-XVI 

 (XVII) 9-10, counnencing above the opercular cleft, the 

 spines increasing in length to the last, which is ^ the length 

 of head or more ; the soft fin pointed, when laid back ex- 

 tending to the extremity of caudal. Anal VI-VII (VIII) 

 7-8. Pectoral as long as the head, extending to above the 

 third or fourth anal spine; ventral extending beyond origin 

 of anal, sometimes nearly to the caudal. Caudal rounded. 

 Caudal peduncle l-'i as long as deep. Olivaceous, with 6 

 or 7 dark cross-bars; a dark spot at the base of the caudal ; 

 fins dusky. 



Eastern Brazil. 



1-3. (123-128 mm.) Brazil. Lord Stuart. 



4. (113 mm.) 

 6-6. (82 aud 123 mm.) Theresopolis. ' Dr. E. A. Goidi. 



7. (89 mm.) I'orto Real, Prov. Rio M. Hardy du Drdneuf. 



Janeiro. 



5. Cichlosonia ohlorujum. 

 Chromys oblonga, Casteln. Anim. Am. Sud, Poiss. p. 14 (1855), 

 Herus 'oblongus, Giiuth. Cat. Fish. iv. p. 299 (1862) ; Pellegr M^m. 

 Soc. Zool. France, xvi, 1903, p. 236 (1904). 



Depth of body 2? in the length, length of head 2?.. Snout 

 as long as eye, the diameter of which is 3^ in the length of 

 head, interorbital width 3^. Depth of prseorbital | the 

 diameter of eye. Maxillary extending nearly to below the 

 eye ; prsemaxillary processes extending to above anterior \ of 

 eye; jaws equal anteriorly; fold of the lower lip subcon- 

 tinuous ; cheek with 1^ series of scales, its lower part naked ; 

 6 gill-rakers on the lower part of anterior arch. Scales 

 26 f, \\ between lateral line and base of anterior rays of 

 soft dorsal. Dorsal (XV) XVI 10, commencing above the 

 opercular cleft, the spines subequal from the fourth to the 

 twelfth, thence increasing to the last, which is \ the length 

 of head ; soft fin, Avhen laid back, extending nearly to middle 

 of caudal. Anal VI 9 (VII 7). Pectoral nearly as long as 

 the head, extending to above the fourth anal spine ; ventral 

 extending a little beyond origin of anal. Caudal slightly 

 rounded. Caudal peduncle ^ as long as deep. Brownish, 

 with about 7 dark cross-bars; fins blackish. 



Southern and Eastern Brazil ; Argentina. 



1. (101mm.) Argentina. Captain Vipan. 



According to Pellegrin, the type of Chromys oblonya, from 



