71 fi PROCEEDINGS OF THE XATIOXAL MUSEUM. vol. xxx. 



a. Dorsal fin much longer than anal; bod 5' scaly; lateral line along side of back; dor- 

 sal and anal not elevated anteriorly; gill membranes separate. 

 b. Bleekeriix.e. Tropii'al species, with the dorsal rays and the vertebra- in rela- 

 tively small number, the dorsal rays being about 40, the vertebra; probably 

 about the same; body covered with ordinary scales, finely sculptured, without 

 oblique transverse folds of skin; no fold of skin along side of belly. 

 c. Ventral fins present, jugular, the rays I, '?>; jaws with small teeth. 



Eiiih<Aicht}nji< 

 cc. Ventral fins wanting; jaws toothless. ( />'. kdllnlepia of India; /). ijiJli of 



unknown locality) Bleekeria 



lib. Ammodytix.e. Arctic species, with the dorsal rays and the vertebne in rela- 

 tively large number, each about 60; body covered with oblique transverse 

 folds of skin; jaws toothless; a fold of skin along each side of belly. 



(1. Vomer prominent, but unarmed Amtiwdytt's 



(hL Vomer with a bicuspid, tooth-like prominence anteriorly. (//. kmcea of 



Europe ) Tlyperoplux 



(id. Hypoptychix.e. Dorsal fin opposite anal and similar in size; body naked; 

 lateral line along middle of side; a fold of skin along middle line of belly; gill 

 membranes imited, free from isthnuis Jfi/jMjpfi/eliK.'t 



EMBOLICHTHYS Jordan and Evermann. 



Embolk'hthys Jordan and Evermann, Proc. U. .S. Nat. Mus., XXVI, 1903, p. 

 698 {miti^ukurii). 



This ijfciius includes sand lance.s with developed ventral fins, jugular 

 i . position, with one spine and three soft rays. Dorsal i"dys about 4<i; 



Fig. 1.— Embolichthys mitsttkttrii. 



anal rays 15. Scales very small, tinel}- sculptured, about 115; ])ody 

 without dermal folds. Vomer unarmed. Lateral line along- side of 

 back; no ventral fold. One species known. This genus differs from 

 Bleckeria {kuliolep/'.s)., an Indian genus, in the presence of ventral fins. 

 {e'/A/3oXo5^ ke}\ z'j^v?, fish, this species giving the clue to the affinities 

 of the group). 



I. EMBOLICHTHYS MITSUKURH (Jordan and Evermann). 



Bleekeria ?»/7s«Ah*v/ .Jordan and Ever.mann, Proc. U. S. Nat. INIus., XXIV, 1902, 



p. 833; Giran, Formosa. 

 Embolichthys mltsukiml .Tordan, Proc. U. S. Nat. Mus., XXVI, 1908, p. 698; 



Giran. 



Habitat. — Kagoshima to Formosa. 



Head, 4.6 in length; depth, S. 5. F^ye, 5.2 in head. Snout, 3.8. D. 

 42. A. 15. Scales, 115. Mouth, large, the lower jaw- much project- 



