72 BULLETIN OF THE BUREAU OF FISHERIES. 



First 6 dorsal raj's set off by a deep notch; caudal truncate; dorsal and anal not distinctly joined 

 to base of caudal, the dorsal connection equal to the skin-covered base, the anal connection a little 

 greater; pectoral notched, the lower lobe of 6 rays, reaching nearly to margin of disk. Disk large, 1.7 

 in head. Vent separated from disk by less than one-half the diameter of the disk. 



Slate colored above, paler below; vertical fins indistinctly speckled and barred; upper half of 

 pectoral speckled. 



The swollen occiput is not so noticeable in the cotype, and the color varies to an olive gray, some- 

 what resembling the typical coloration of N. callyodon. The lower lobe of the pectoral appears shorter 

 than in N. flora:. 



Three cotypes are in the collection, i from Nikolski, Bering Island, 2 from Agattu Island. 



Cyclogaster (Neoliparis) beringianus, new species. (Fig. 17.) 



Type 64 mm. long, from Nikolski, Bering Island. 



Head 31 himdredths of length without caudal; depth 24; eye 4; snout 12; gill opening 6.2; ventral 

 disk 13; interorbital width 13; maxillary 12.5. Dorsal ^-:^y, anal 31; pectoral 36. 



Body deepest at origin of dorsal, compressed posteriorly. Occiput not swollen; profile descending 

 gradually, the interorbital region not depressed; snout not deep, transversely blunt and rounded; jaws 

 equal; maxillary reaching vertical from front of eye. Teeth strongly trilobed in the young, weakly so 

 in the adult, arranged in narrow bands, 7 oblique rows in the half of each jaw; superior pharyngeal teeth 



'JJ?^^^^^^ 





Fig. 17. — Cyclogaster (Neoliparis) beringianus, new species. Type. 



few and scattered, not closely bunched together, as in C. greeni. Anterior nostril in a short tube, the 

 posterior a transverse slit without raised margins. Gill opening extending upward from the edge of the 

 upper pectoral ray. Anterior part of lateral line marked by a series of papillae which seem minutely 

 perforate, the line narrowly arched above base of pectorals, a few scattered papillae above the anterior 

 half of the lateral line and on the sides and top of head: the pores have slightly raised rims, which are 

 sometimes divided, forming lips. A series of larger open pores without papillae on mandible, and one 

 above and behind orbit. 



Origin of spinous dorsal over middle of upper pectoral ray, wholly separated from soft dorsal by a 

 deep notch; the spines progressively lengthened and bound together by a tliick skin; dorsal and anal 

 slightly connected witli the caudal; pectoral notched, the lower lobe composed of 7 rays and reaching 

 slightly beyond the ventral disk. Disk moderate; distance from tip of lower jaw to disk 2 in head. 

 Vent nearer anal tlian disk. 



Color in life: Uniform pale pea-green, without spots or other distinctive markings on body or fins. 



This species is closely related to C. greeni, but differs in the more reduced gill opening and the 

 fewer superior pharyngeal teeth. It is found in the tide pools with C. callyodon, but can be distin- 

 guished from the latter by the greater number of fin rays, the coloration, the deeper body, smaller disk, 

 more posterior anus, and in the wider union between anal fin and caudal. 



This species was found to be common at Nikolski ; numerous cotypes were also taken at Unalaska, 

 Agattu, and Medni Islands. In a specimen from Unalaska tlie fin rays are: Dorsal v-36; anal 32, 

 pectoral 36. 



