1915.] 



NATURAL SCIENCES OF PHILADELPHIA. 



523 



and directed back. Short anterior row of 4 teeth each side of vomer. 

 Long row of palatine teeth, becoming gradually smaller posteriorly. 

 Well-developed patch of pterygoid teeth. Tongue small rounded 

 smooth knob in mandible anteriorly. Upper surface of basibranchial 

 shaft finely asperous. ]\Iandible convex over surface, constricted 

 to small rounded knob at symphysis, rami not elevated inside mouth. 

 Mandible included within upper jaw so that its tip extends well 

 bej^ond front nostril. Nostrils small, together, a little nearer eye 

 than snout tip. Interorbital moderately convex. Each supraorbital 

 ridge distinct, slopes up straight to nape. Cheek would form an 

 isosceles triangle. Skin on top of head, cheeks and opercles with 

 various little pits or depressions, producing somewhat reticulated 

 or honeycombed appearance. 



Gill-opening forward about opposite front pupil edge. Rakers 



Fig. 1. — Anchovin abbotti Fowler. t,Type-) 



9 -|- 16, rather slender, ends obtuse, inner edges well denticulated, 

 about 2| in eye. Filaments 1| in eye. Pseudobranchise about 

 2| in eye. Isthmus long, rather narrowly constricted, lower edge 

 depressed or slightly convex. Branchiostegals 12, membranes 

 slightly united as free fold across isthmus in front. 



Scales rather loose, narrowly imbricated, arranged in even length- 

 wise series, more or less uniform in size. Each scale with about 

 5 vertical striae. Caudal base scaly, small scales on bases of lobes 

 and several median elongated horizontal scales,, though of rather 

 small size. Dorsal and anal with well-developed basal scaly sheaths. 

 Pectoral with long pointed axillary scale, f length of fin. Ventral 

 with large axillary scale, long as fin. Both pectorals and ventrals 

 with lower broad scaly flaps. 



Dorsal origin midway between centre of eye and caudal base, 



