REVISION OF THE FISH FAMILY LIPARIDAE 75 



Synopsis. — Dorsal 41-43; anal 34-35; pectoral 35-38; pyloric 

 coeca 36-48. Disk 2.2-2.4. Gill slit extending down in front of from 

 three to five pectoral rays. Dorsal fin uimotched. Dorsal fin con- 

 nected to the basal fourth of the caudal fin. No prickles. A medium 

 sized species, our largest specimen 121 mm. in length. 



Remar-ks. — Specimen No. 31533, U.S.N.M., from Nauset Beacon, 

 Mass., is doubtfully placed with the species. The gill slit extends 

 down in front of the pectoral fin as in L. tunicatus, but the fin rays 

 can not be counted. It is possible that this specimen belongs to the 

 same species as the specimen doubtfully recorded as L. atlanticus. 

 It is to be regretted that these specimens are in such condition that we 

 can not ascertain their relationships. 



LIPARIS HERSCHELINUS Scofield 



Liparis herschelinus Scofield, 1899, p. 504, pi. 7. — Evermann and Golds- 

 borough, 1907, p. 333, pi. 18. 



Type.—^o. 5601, S. U. Z. M.; Herschel Island, Arctic Ocean. The 

 type bottle contains 17 small specimens; length 37-64 mm. 



Distribution. — Ejiown onlj" from the tide pools of Herschel Island, 

 Seventeen specimens examined. 



Relationships.— L. TierscJielinus is very closely related to L. tunicatus. 

 The former species appears to have a smaller number of pyloric coeca 

 and a smaller gill slit than the latter. These differences may not be 

 found to hold, as the type specimens of L. herschelinus are small and in 

 poor condition and do not permit of satisfactory comparison to bo 

 made \vT.th L. tunicatus. It is possible that the two species are 

 identical. 



Description of the types. — Dorsal 44; anal 35; pectoral 37; p34oric 

 coeca 18. Depth 4.4 in length without caudal; head 3.5. Eye 4.3 in 

 head; disk 2.2. 



Head and bod}^ distorted and not satisfactory for a description. 

 Teeth stout, in about 9 oblique rows in the half of each jaw. Snout 

 slightly projecting. Anterior nostril in a short tube; posterior nostril 

 without a tube. Eye small. Gill slit in some specimens appearing to 

 be above the pectoral fin and in others extending down in front of 1 to 

 2 or 3 pectoral rays; the distorted condition of the bodies probably 

 accounts for some of this variation. Pyloric coeca in one specimen 18, 



Dorsal fin unnotched; about 10 rays unsegmented. Caudal slightly 

 rounded, connected for about one-fourth its length to the dorsal; no 

 notch between dorsal and caudal or anal and caudal; anal connection 

 to the caudal a little greater than dorsal connection. Pectoral fin with 

 a shallow notch; the lower lobe short, reaching a little past disk. 

 Disk moderate. Vent nearer anal fin than disk, separated from disk 

 by diameter of disk. 



