1886.] PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. ij>?)iy 



38. Aprion virescens. (Ciiv. & V:i!., vi, .'4?, 1830.) 



Tbis species is fully coiijueneric with the Americau ApHon (or Pla 

 tylni'us) macrophfhalmus. i( has the same form of head, the vertex and 

 iuterorbital area being perfectly flat. The body is more slender (depth 

 4) than in Aprion macrophthalmus, the teeth a little stronger, and the 

 preorbital broader, 6 in head. 



39. Apsllus fuscus. (Ciiv. & Val., vi, 548.) 



This is fully congeneric with the American Apsilus {Tropidinius) den- 

 tatus. It has the same form of the skull, but the body is slenderer (depth 

 3 in length), the teeth smaller, and the.caudal lobes more pointed. The 

 generic name Tropidinius is therefore a synonym oi Apsilus as Platyinius 

 is of Aprion. (See Jordan & Swain, Proc. U. S. Nat. Mus.,1884, 4G5.) 



40. Haemulon canna. (Co v. & Val., v, 2:>3, 1830 ; not. of Agassiz, 1829.) 

 A specimen of 20*' long. Martinique: Plee. 



This is the Ha^mulon parrcv of Jordan and Swain, as Dr. Giiuther has 

 supposed, and it should stand as H^i^mulon bonariensb. 



*1. Hasmulon canna. (Agassiz, Spis. Pisf., Brazil, 1829, 130, pi. 69.) 



A careful recomparison of Agassiz's description and figure of Hccmv- 

 lon canna, with diflt'ereut species of Hwrniuon, leads me to the conclu- 

 sion that it can be no species other than the Hatnulo7i acutum. This 

 use of the name canna (by Agassiz in 1829) is pi-ior to its use by Cuv. 

 & Val. (in 1830) for another species. The species of Agassiz may stand 



as H^MULON PARRA. 



Agassiz's Ra'niulon sehranki I must still regard as unidentifiable, 

 though it most resembles Hcvmulon steindachneri., from which it would 

 appear to differ in color and in the v^ery small size of the anal fin — both 

 very doubtful characters. 



42. Haemulon caudimacula. (Cut. & Val., v. 236.) 



Specimen of .12'". Brazil : Delalande, 



This is the young of the species called by us Hmmulon acutum. 



The name Hivmnlon caudimacula., hov^ ever, first appears in the Eegne 

 Animal, where it is based, without description, on the scarcely identi- 

 fiable Uribaco of Marcgrave and the Diabasis parra of Desmarest. 



The name Rwmnlon eaudimacxila Cuvier, becomes thus either un- 

 identifiable or else a a synonym of Hwmulon parra. 



The Diabasis parra is itself not very satisfactory. The rough figure 

 given by Desmarest, as well as his description, best fit the Haemulon 

 acutum., and we have the statement of Cuvier & Valenciennes that 

 Desmarest's fish does not seem to differ from their cavdimacnla from 

 Brazil, which is acutum. They do not, however, say whether they have 

 examined Desmarest's type or not. 



Dr. Sauvage, however (Bull. U. S. Fish Comm., 1881, 322), gives an 

 account of a specimen in the Museum at Paris, said to be a type of 

 Desmarest as well as Cuvier & Valenciennes. This descrintion is not 



