1886.] PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 527 



4. Fundulus cingulatus. (Cuv. & Val., xviii, 197,1846.) 



One specimen in poor condition, .07°^. North America : Castelnau. 



A Zygonectes. Head broad and flat. Eye large, 3 in head. Distance 

 from front of dorsal to caudal half the distance to front of eye. Teeth 

 rather strong. Caudal long. D. 7 ; A. 8. Scales about 33-10, but as 

 some are lost, this count is uncertain. Head, 3f in length ; depth, 4^. 



Body crossed by (about 16) narrow cross-bands, which are quite dis- 

 tinct, and narrower than the interspaces. Region below eye silvery — 

 not dark. 



This is evidently different from the Zygonectes cJirysotus Giinther, de- 

 scribed by Jordan & Gilbert (Proc. U. S. Kat. Mus., 1882, 586) under 

 the name of Zygonectes cingulatus. The Hydrargyra lucice of Baird is 

 probably different from both. The Fundulus zonatus of C. & V. (not 

 Esox zonatus Mitchill) may be this species, or, more likely, the very 

 closely related Zygonectes zonifer Jordan and Meek, if indeed the latter 

 prove to be different. 



In any case, the present species should stand as Zygonectes cingu- 

 latus. 



In this connection I may note that Zygonectes notti Agassiz, recently 

 rediscovered by Professor Hay (Proc. U. S. Nat. Mus., 1885, 557), seems 

 to be identical with Zygonectes craticula Goode & Bean. 



Zygonectes manni Hay, as already noticed by Dr. Bean, is my Heteran- 

 dria ommata. It is not a Heterandria, nor apparently a Zygonectes. The 

 black caudal spot which is found in all species of Eivulus would indi- 

 cate its affinity to that genus, with which it agrees in external charac- 

 ters. It may therefore be called provisionally Bivulus ommatus. 



5. Exocoetus melanurus. (Cuv. & Val., xix, 101, 1846.) 



Specimen somewhat shriveled; .27'" in length. New York: Milbert. 



Second ray of pectoral divided, the tirst more than half length of flu. 

 Anal short, with 9 rays. Dorsal low. Head moderate, 4i in length. 

 Eye 2| in head. Yentrals inserted at a point about midway between 

 base of caudal and eye. Pectorals reaching to or beyond last ray of 

 dorsal (the tips broken). Dorsal and ventrals pale. Pectorals plain, 

 dusky behind. A black spot on lower side of caudal peduncle, its di- 

 ameter f that of eye. This is undoubtedly not a natural color-mark, as 

 it is not alike on the two sides of the tail. There is a hole in its center, 

 and the flesh within the dark area is also black. The fish seems to 

 have been dried before being put into alcohol and it had doubtless been 

 hung up by a black string or a nail through this hole. 



As supposed by Jordan and Meek (Proc. U. S. HJat. Mus., 1885, 60), 

 this is the species for which has been retained the name of Exoccetus 



HETERURUS. 



6. ExoccBtus volitans. (Cuv. &, Val., xix, 83, 1846. Not of L.) 



Specimen in good order ; .35™ ; collected by Le Sueur; belongs to the 

 same species as the preceding. 



