1910.] NATURAL SCIENCES OF PHILADELPHIA. 405 



course, and those below in nearly even horizontal series. About 4 

 rows of scales on cheek extending well forward on preorbital region 

 nearly opposite gape of mouth. Top of head scaly nearly to inter- 

 orbital. Opercles entirely scaly, scales extending down over bran- 

 chiostegals, at least above. Breast sides covered with small scales, 

 at least a little smaller than others. No scaly axillary flaps. Small 

 scaly flap between bases of ventrals. Small scales on caudal base. 

 Lateral line inconspicuous, continuous, sloping gradually down from 

 shoulder to caudal base, and scales in its course not enlarged. Where 

 scales have fallen its course is very evident by enlarged pigmented 

 pockets, but showing indistinctly through perfect squamation. Tubes 

 very inconspicuous, simple, short, little exposed, and rather sparse, 

 or alternately skipping 1 or more scales. 



Dorsal origin inserted little nearer caudal base than hind preopercle 

 edge, small, graduated down from second simple ray, and base about 

 f its depressed length. Anal inserted little nearer dorsal origin than 

 caudal base, first branched rays longest (edges damaged) and posterior 

 half of fin much lower. Adipose dorsal not determined (damaged). 

 Caudal (damaged) small, and 7 rudimentary rays both above and 

 below well developed. Pectoral small, low, inserted close after end 

 of opercle, and uppermost rays longest. Ventral inserted about 

 opposite base of fourth branched dorsal ray, small, rounded, and 

 depressed fin about 3^ to anal. Vent just after tips of depressed 

 ventrals. 



Color when fresh in alcohol deep lilac or leaden-grayish generally, 

 with more or less dull neutral shades and silvered reflections. Colora- 

 tion largely uniform, scarcely paler below. Edges of bones of head 

 above with more or less blackish pigment. Inside mouth, tongue, 

 and within gill-opening blackish. Fins all dull pale grayish, dorsal 

 and caudal slightly dusky. Iris shining leaden-dusky. 



Length 8-j- inches (caudal damaged). 



Type, No. 37,627, A. N. S. P. Corson's Inlet, Cape May County, 

 N. J. March 27th 1910. Dr. R. J. Phillips. 



This is the only example obtained, and was found on the beach. 

 Though in fair preservation, it had been disturbed a little by some 

 crabs, which damaged part of the back in the region of the adipose 

 dorsal. Our species appears related to the European P. coregonoides, 

 differing chiefly in the smaller scales and having the teeth in the jaws 

 all minute except the anterior palatines and mandibular canines. 

 According to Moreau 1 the scales of P. coregonoides are about 64 in the 



l Poiss. France, III, 18S1, p. 519, fig. 205. 



