'^& ^EW SPECIES OF FISHES. iSeptenil<4. 



above all by its anal-Jin^ which is hardly visible^ 

 Whereas in Bloch's thfissa this last is very large. 



The length of its body is six times that of its head^ 

 its depth about k head and a half; back almost straigivtj 

 throat and abdomen describing an inverted arch as far 

 as the tail, and armed with from tiiirty-two to thir- 

 ty-three serraturesj of Which iburtseii ior fifteen 

 We placed between the ventrals and anal-fin ; heai 

 small) naiTOw; eyeU round, irides blackish above, 

 J- elloW and silvery below^ ; maxillaries not passing be- 

 yoild the fore part of the eyes -, teeth none ; dovsal-f.u 

 rlevated before, very low^ behind, not emarginated, but 

 almost straight ; pectorals not projecting beyond the 

 base of the dorsal-fin ; ventrals small, triangular, si^i 

 tiiafc rJmost beneiilh the middle of the dorsal-fin, and 

 midway between the pectorals and anal-fin; caudal-fin 

 jgi'eatly forked, lobes narrow , pointed, black at their 

 extremities ; hack of a blue colour, w ith blackish lon^ 

 gitiidinal bands ; 81(Zp5 paler; abdomen^ throat) jpecto- 

 vaty veTtfrdly and anal fins white ; ojpercula^ head^ dor* 

 sal-fnu taiU and caudaUJln tinted with yellovr ; oper^ 

 cula ornamented w ith rosa:ceous tints ; scales large, re-, 

 -gnlar, narrow over the Whole body, and at the base of 

 the rkys of the caudal-fin ; lateral-line hardly visible^ 

 length of specimen described, eight inches. 



To this species is given, as well as to several other 

 ^shes, the name of Alcwife. Taken at Newport^ 

 Khode-islatid. 



B. 9.— D. 18.— P. 19.— V, e.—A. 20 to n^.^-iX 

 »fB rays. 



