752 CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY IV. 



scries of conical U'c-th: - large curved canines on vonicr; head with 

 several rows of fringed pores: ore row along lower line of opeivle and 

 subopercle; another along upper edge of cheeks, this branching behind 

 and below the orbit, one branch running forwards below the orbit and 

 around the snout, the other vertically downwards behind the maxillary: 

 a series of fringes behind the lower lip; behind this a series of pores 

 without fringes; a short straight scries of pores on each side of vertex; 

 a row of pores along the base of the dorsal lin, curving at front of dor- 

 sal, and terminating at upper angle of opercle; a row below this, not 

 reaching base of pectoral; a third row does not reach the base of cau- 

 dal, and is anteriorly strongly curved upwards to base of pectoral; 2 

 concentric series on the abdomen, the outer extending forwards be- 

 tween bases of ventrals. The so-called "shining pores" on the sides 

 are not pores, but bright round pieces of shiny membrane, showing 

 throngli a translucent skin; each of the spots luis above it a pair of 

 fringed Haps with a small pore between them; the rows of Haps along 

 bases of dorsal and anal (ins are without shining spots. Ventrals 

 reaching bases of pectorals, which reach to opposite the sixth anal 

 ray; caudal not half length of head; peritoneum black. Head ,"j-J; 

 depth 0. D. 11-37; A. 33; V.I, 2; P. 18. L. 13 inches. Pacific coast ; 

 very abundant from Lower California t*o Puget Sound; occasionally 

 southward to Panama; also in the West Indies and on the coast of 

 Brazil. 



Batrachus poroaisaimua C. & V. xii, ."01: Poriditliyx notatui Girard, Proc. Acacl. Nat. 

 S,-i. 1'hila. 1854, 141, and in U. S. Par. K. R. Surv. Fish. KU ; (Jiinthrr, iii, 170.) 



FAMILY CXIII.-LEPTOSCOPIDJE. 



Bo;ly oblong, low, compressed posteriorly, covered with moderate 

 c\doid, imbricated scales; lateral line complete, anteriorly running 1 

 along side of back, posteriorly median; head oblong, nearly plane, 

 above; eyes small, superior, well forward; snborbital bones enlarged, 

 but without "stay"; nostrils double: opercle fringed: mouth nearly 

 vertical; prema \illaries protractile, not forming the entire edge of the 

 upper jaw; lips fringed; gill openings very broad, the membranes sep- 

 arate and free IV. im the isthmus; pscndobrancliia' present or absent. 

 Dorsal I'm \crv long, undivided, several of the anterior rays spinons; 

 anal very long, commencing close behind the vent, which is near the 

 breast; caudal diphycercal. free from dorsal and anal; pectorals vari- 

 able, the base procmrent : \ cut rals jugular, I, 3 or 1,5; vertebra- more 

 than 10+ It; pyloric co-ca none, (lenera about 5; species about 10; 



