458 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxv. 



smaller one from Ag-u in Shima. The former is Type No. T070, Stan- 

 ford University Zoological Museum; the other is Co-type No. 50300, 



U.S.N.M. 



{aGffoov^ very swift.) 



9. ASPIDONTUS JAPONICUS Bleeker. 



Petrosdrtes jripo7iinis Bleeker, Versl. Kon. Ak. Wet. Amst., Ill, 1869, p. 246; 

 Jedo. 



The following is the substance of Bleeker's description of this fish, 

 which ma}' he the same as our jlyj>idonft/.'^ da><fi(>n. 



Head i\^ with caudal, about 5 without; depth Gij in total (5 to base 

 of caudal); D. XI, 21; P. 13; A. 25. 



Body elongate, compressed; forehead above eye verv convex; no 

 cirri on occipital crest; eye -li in head, less than a diameter apart; 

 snout ol)tuse but not convex, prominent before the eyes; victus extend- 

 ing- to below front of eye; teeth in each jaw close set, obtuse, 36 to -10 

 in number; a curved posterior canine on each side, the lower canine 

 more than twice as long as the upper; gill opening not smaller than 

 e3'^e; lateral line conspicuous anteriorly; dorsal entire, the spines low, 

 growing progressively longer behind; pectoral rounded, in total 

 length; ventral 11 in length; caudal 6^. 



Color dusky reddish, paler below; fins dull orange; iris green. 

 Described from a specimen 83 mm. long, from Yedo (Tokyo). AVere 

 it not for the number of teeth counted b}^ Bleeker, we should unhesi- 

 tatingly identify it with Aspldontus dasson. 



6. SALARIAS Cuvier. 

 yS'aZar/a.s- CuviER, Regne Aniiii., 2d ed., 1829, p. 175 {quadripinnis). 



This genus differs from Scai'tichthijs in having the dorsal fin con- 

 tinuous, Avithout notch; no posterior canines. 

 {ffaXapux^ a modern Greek name of Blennius hasiUscus.) 



10. SALARIAS CERAMENSIS Bleeker. 



Salarias ceramensls Bleeker, Ceram, II, 1852, p. 701 ; Ceraiu, Celebes, Boro. — GiJN- 

 THER, Cat. Fish., Ill, 1861, p. 246; Ceram. 



Head 5 in length; depth of; depth of caudal peduncle 2^^ in head; 

 eye 3i; interorbital space 6|; D. XH, 19; A. 1, 19; P. 11. 



Body deep and greatly compressed; head small, short, blunt, the 

 anterior profile blunt; eye large, its diameter twice width of sub- 

 orbital, located in upper, anterior part of head; mouth horizontal, 

 lower jaw somewhat shorter than upper; teeth in a single row in each 

 jaw, minute, slender, close-set, loosely embedded in the fleshy gums, no 

 canines; gill-membranes forming a broad fold across the isthmus; gill- 

 rakers on first arch minute, pointed; pseudobranchice well developed, 



