1911.] 



NATURAL SCIENCES OF PHILADELPHIA. 



435 



tioned, also large part of dorsal spine basally, hind projection of 



shoulder-girdle and pectoral spine slightly basally. Shoulder-girdle 

 anteriorly, and above articulation of pectoral spine, swollen, its 

 surface smooth. L. 1. median, rather tortuous in its course, and with 

 numerous small bifurcations, complete. 



Dorsal origin trifle behind last third in space between snout tip and 

 caudal base, spine long, nearly straight, much longer than head or 

 equals space between snout tip and hind edge of posterior projection 



Fig. .5. — Pseudaucheni pterus nigrolineatus Fowler. Type. 



of shoulder-girdle, greatly swollen at each side basally, and its hind 

 surface with numerous antrorse serrae. Dorsal radii slender, first 

 but little shorter than spine and others rapidly graduated down. 

 Adipose fin inserted about last thh'd in space between dorsal origin 

 and caudal base, fin 3 to latter. Anal inserted about midway between 

 base of first dorsal ray and caudal base, third simple ray longest, 

 rays evenly graduated down with edge of fin entire. Caudal well 

 forked, a little longer than head, lobes slender, pointed, equal. Pec- 

 toral depressed about t to ventral, with spine longest, then first ray 

 but little shorter and others rapidly graduated down. Pectoral 

 spine with inner margin evenly and finely serrated antrorsely. Ven- 

 tral inserted about midway between hind end of posterior projection 

 of shoulder-girdle and anal origin, fin about i to latter. Vent close 

 before anal. 



