486 CAEANGID^. 



16. PAROPSIS. 



Paropsi8, Jenyns, Zool. Beagle, Fishes, p. 65. 



The body is compressed, elevated, covered with very minute teeth ; 

 rhe lateral line mthout any armature ; the cleft of the mouth wide. 

 The spuious dorsal is formed by five short isolated spines ; the soft 

 and the anal are much more developed, without detached finlets ; two 

 anal spines, separated from the remainder of the fin. Ventrals none. 

 Single series of teeth in the jaws ; teeth on the vomer, the palatine 

 bones, and on the tongue. Branchiostegals ten. 



East coast of South America. 



1. Faropsis signaia. 

 Jenyns, I. c, p. 66. pi. 13. 



B.IO. D.5|^. A.2|^. 



The maxillary reaches to a vertical from the posterior part of the 

 orbit. Uniform silvery ; a black patch on the gill-cover, and another 

 under the pectoral fin. (Jen.) 



Northern coast of Patagonia. 



17. PSETTUS. 



Psettus, (Co)n7ne7-s.) Cuv. §• Val. vii. p. 240. 



Body much compressed and elevated ; snout rathej- short. One 

 dorsal, entirely covered with scales, with seven or eight spines ; the 

 anal with three ; ventrals very small, rudimentary, with a very 

 short spine and some rays. Teeth villiform ; no teeth on the palate. 

 Scales small. Six branchiostegals ; air-bladder bifurcate posteriorly ; 

 pyloric appendages in increased number. 



West coast of Africa ; all the Indian Seas from the eastern coasts 

 of Afiica to Australia and Polpiesia. 



1. Pseitus seb£8. 



Seba, in. 26. 21. 



Chfetodon rhoiuljeus, Bl. Schn. p. 235. 



Psettus sebaj, #!». 8f Val \\\. p. 241. pi. 1S3. 



Gasterosteus rhonibeus, Forst. Descript. Anim. air. Lichtenst. p. 7. 



D. ^^ A. ^. L. lat. 55. Vert. 10/14. 



The height of the body is a little more than its length (without 

 fins) ; the diameter of the eye is contained twice and one-third in 

 the length of the head. Uniform gUvery. 



Coasts of West Africa. 



a. Fine specimen. River Niger. From Mr. Eraser's Collection. 



b. Fine specimen. India (?). 



e. Adidt : skeleton, (jold Coast. 



d. Adult: bad state. Coast of Africa. From the Haslar Collection. 



