332 CHAEAC1NIDJ3. 



serialcs, multicuspidcs, medio cuspide prselongo, recurvo ; laterales 

 vicini miilto fortiores, posteriores aiiteni minimi. Corpus compres- 

 sum ; abdomen subrotundatum. Basis jjinnae dorsalis inter ventrales 

 et analem sita, brevis ; analis longa. Squamae magnae ; linea late- 

 ralis abrupta." 



Western Andes of Ecuador. 



1. Pseudochalceus lineatus. 



Kner, I. c. 

 B.4. D.10-11, A.20-26. P.10-11. V.8. L.lat.36. L.transv.lO. 



" Corpus octo vel novem striis longitudinalibus fusco-nigris linea- 

 tum, insuper ocello nigro retro operculum et ad pinnae caudalis basin 

 distinctum." 



Western Andes of Ecuador. 



22. CHIRODON. 



Tetragonopterus, sp., Jenyns. 



Cheirodon, Girard, Proc. Acad. Nut. Sci. Philad. vii. p. 199. 



Dorsal fin placed in the middle of the length of the body, behind 

 the ventrals ; anal long or of moderate length. Body oblong, covered 

 with scales of moderate size ; lateral line not continued to the tail. 

 Belly rounded before the ventrals. Cleft of the mouth narrow, 

 maxillary short. A single series of small serrated teeth in the inter- 

 maxillary and mandibulary ; maxillary teeth none. Nostrils as in 

 Tetragonopterus. 



Maldonado; Chile. 



1. Chirodon interruptus. 



Tetragonopterus inteiTuptus, Jemjns, Voy. Beagle, Fish. p. 127. tab. 23. 

 iig. 4. 



D. 11. A. 19-20. V. 7. L. lat. 35. L. transv. 5/4. 

 The height of the body is two-fifths of the total length (without 

 caudal), the length of the head one-foui-th ; upper profile of the head 

 scarcely concave. The pectoral extends beyond the root of the ven- 

 tral. Sides with a bright longitudinal band ; a black spot at the 

 base of the caudal. {Jen.) 

 Maldonado. 



2. Chirodon pisciculus. 



Girard, I. c, and U. S. Nav. Adronom. Exped. Fishes, p. 249. pi. 34. 

 figs. 4-7. 



D. 10. A. 14. V. 7. L. transv. 10 or 11. 

 The height of the body is less than one-third of the total length 

 (without caudal), the length of the head one-fourth ; iipper profile 

 of the head rather convex. The pectoral roaches nearly to the root of 

 the ventral. Sides with a sUvery longitudinal band, bordered with 

 blackish above. (Oirard.) 

 Santiago (Chile). 



