344 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 



Diagnosis. — Teeth small, conical; gill-openings close together. The 

 dorsal fin commences far in advance of the gill-opening, a little nearer 

 to the top of the snout than to the gill-opening, at a distance from the 

 former equal to three times the length of the snout. The length of the 

 head is contained 8.J times in distance between gill-opening and vent, 

 and 8 times in length of tail. Snout pointed,' contained G times in length 

 €f head. Teeth biserial in jaws and on vomer. Pectorals extremely 

 small. Color, brownish, lighter below. 



Measurements. 



Millimeters. 



Leugth of body .'. 750 



Length of tail '. 345 



Length of head 43 



"Width of iuterorbital area 5 



Length of snout 6^ 



Angle of mouth from tip of upper jaw 10^ 



Angle of mouth from tip of lower jaw 8 



Diameter of orbit li 



Distance of dorsal from snout 21 



"Width of gill-opening 5^ 



Length of pectoral (right side) 2 



Length of pectoral (left side) IJ 



32. Gymnothorax ocellatus, Agassiz. 



A single specimen (No. 23634), 325 millimeters long, was sent from 

 dear AVater Harbor. The markings are of the typical character. 



33. Crotalopsis mordax (Poey), Goode & Bean. 



Two specimens (No. 23635), 265 and 232 millimeters, were sent by 

 Dr. J. W. Yelie from Clear Water Harbor, Fla. They are young, and 

 have the eye contained about li times in the length of the snout. The 

 spots are large, the longest with diameter less than half the length of 

 the head. 



TRYGONID^. 



34. Dasybatis sabina (Lesueur).— ;Sfiw<7 Ray. 



Three specimens (No. 23648) in salt, each about two feet long, tail 

 included, were sent by Dr. Velie; also, a large skin of a Sting Ray, 

 probably D. tuherculatus, or perhaps D. hastatus or X>. 8ayi. 



GALEORHINID^. 



35. Hypoprion brevirostris, Poey. — Man-eater Shark. 



A large specimen (No. 23649) in salt was sent by Dr. Velie. This 

 .«pecies was incorrectly cited by us, lapso calami^ in the American 

 Journal of Science and Arts, October, 1877, under the name Hypoprion 



longirostris. 



SPHYRNID^. 



36. Reniceps tiburo (Linn.), Gill. — sjtovcl-nose Shark. 



A single small specimen in salt (No. 23650) was sent by Dr. Velie. 



