EUPROTOMICRUS LATICAUDUS. 235 



EUPROTOMICRUS BISPINATUS. 



Leiche laborde Quoy & Gaimabd, 1824, Voy. Uran., Poiss., p. 197, pi. 44, f. 1-2. 



Scymnus bispinatus Quoy & Gaimard, 1824, iVjid., pi. 44, f. 1, 2. 



Scymnus mauritianus Quoy & Gaimard, 1830, Diet, class, hist, nat., Atlas, pi. 114 (Poiss., 22, pi. 45). 



Scymnus (Laemargus) labordii MtJLLER & Henle, 1841, Plagios., p. 94. 



Dalatias (Somniosus) bispinatus Gray, 1851, Chondropterygii, p. 77. 



Euprotomicrus labordii Gill, 1864, Proc. Acad. nat. sci. Phil., p. 264; Gunth., 1870, Cat. fishes Brit. 



mus., 8, p. 428; Waite, 1907, Rec. Canterb. mus., 1, p. 8. 

 Laemargus labordii Dumeril, 1865, Elasm., p. 457. 



Snout blunt, rounded in front; nostrils anterior, valves short, broad, with 

 a sharp point. Lower teeth 23; median tooth small, erect, the others slightly 

 oblique in the cusp. Pectorals small, subtruncate. First dorsal very small, in 

 front of the ventrals, less than one fourth as long as the second. Second dorsal 

 much longer than the first, placed above the space between the ventrals and the 

 caudal and half as long; origin close behind the bases of the ventrals. Caudal 

 short, deep, subcaudal portion forming a lobe in front, concave on the hind 

 margin, separation between terminal and subcaudal a shallow notch. Scales 

 small, resembling those of Isistius, four-cornered with a central depression on the 

 crown. 



Uniform dark brown, pectorals dark at the base lighter outward. 



Indian Ocean; Mauritius; New Zealand. 



Euprotomicrus hyalinus. 



Euprotomicrus hyalinus R. S. Eigenmann, 1890, Proc. Cal. acad. sci., ser. 2, 3, p. 35. 



The type described under this name was taken in the Pacific between San 

 Francisco and Honolulu nearer the latter. The colors were given as dark seal- 

 brown, lighter below, edges of caudal, dorsals, entire ventrals, and mostly the 

 pectorals hyaline. A narrow basal band of the pectorals and dorsal margin, 

 with a spot posteriorly, black. A doubtful species hardly separated from E. 

 bispinatus by the particulars noted. 



Euprotomicrus laticaudus. 



Squaliolv^ laticaudus Smith & Radcliffe, 1912, Proc. U. S. nat. mus., 41, p. 684, f. 4, pi. 54. 



Form elongate slender subfusiform, slightly compressed. Body cavity long; 

 caudal section short, tapered. Head long, nearly \ of the total length, slightly 

 depressed; snout pointed. Eye large, lateral; orbit less than half the length 

 of the distance from the end of the snout. Nostrils large, about half way from 



