270 Prof. Kaup on new Genera and Species of Fishes. 



XXXVI. — On some new Genera and Species of Fishes collected by 

 Drs. Keferstein and Hseckel at Messina. By Prof. Kaup. 



[With a Plate.] 



Family Leptocephalidas. 



Genus Stomiasunculus, n. g. 



Diagnosis. No ventral fins ; distinct dorsal, caudal, and anal 

 fins only towards the extremity of the body. Head large, with a 

 lobe at the apex of the lower jaw. Operculum produced poste- 

 riorly, with a large aperture directed far forwards. No teeth. 



Description. This is a very elongated form, round rather than 

 compressed, with a smooth body, of which the muscular chevrons 

 are very simple. Anus situated towards the extremity of the 

 body, in a sacciform process. 



In this genus there is a certain resemblance to Stomias (such 

 as occurs in Esunculus to Esox), especially in the position of the 

 dorsal and anal fins. I even suppose that the injured caudal fin 

 was forked, as in Esunculus. As there are still many gaps in 

 this family, it is impossible to say exactly what is the true posi- 

 tion of this genus. 



Stomiasunculus barbatus, Kaup. PL III. fig. C. 



Head large, obtuse, with black eyes, not silvery as in the 

 Leptocephali. The operculum and cheeks exhibit rows of fine 

 points j along the intestinal canal and the anal fin there is a 

 row of points, such as occurs in many Leptocephali. The rays 

 of the dorsal and anal fins are finely punctate ; and there are 

 also fine points on the lower part of the caudal. Found at 

 Messina by Dr. Keferstein. The figure is three times the natural 

 size. 



Genus Leptocephalus, Gron. 



To this genus, which is far too little known, I add two new 

 species, found at Messina and received from Drs. Keferstein 

 and Hseckel. 



Leptocephalus Hackeli, Kaup, n. sp. PL III. fig. B. 



Head small and pointed, with distinct teeth; no rows of 

 points on the middle of the lateral line ; rows of points along 

 the yellowish intestinal canal ; tail one-eighth of the length of 

 the body. Resembles L. brevirostris, Kaup ; but the snout is 

 longer, the body not so high, and the tail less pointed. 



Leptocephalus Kefersteini, Kaup, n. sp. PL III. fig. A. 



Head extremely small, with very fine teeth. Seven roundish 

 spots, composed of points, along the intestine. Anus rather be- 



