354 PROCEEDINGS OF THE NATIONAL MUSEUM. yol. 42. 



to disk 17; to anus 38; diameter of disk 15; distance from disk to 

 anus 7; anus to front of anal fin 15; length of longest pectoral 

 ray 15; of longest ray of lower lobe 12; of shortest ray in notch 8. 



Dorsal 34; anal 26; pectoral 29; pyloric ci^ca about 70. 



Head and body as in C. callyodon; head depressed, the width 

 greater than the depth; profile depressed above the eyes; maxillary 

 reaching vertical from anterior half of eye; snout depressed; jaws 

 about equal. Teeth as in C. callyodon, in about nine oblique rows 

 in the half of each jaw. Anterior nostril in a prominent tube; pos- 

 terior nostril with a raised rim, the anterior outer margin of rim 

 raised to form a narrow pointed flap. Gill slit small, extending down- 

 ward to opposite the base of the upper pectoral ray. 



The anterior nine dorsal rays unsegmented, the first five set off by 

 a notch. Caudal truncate, dorsal and anal connected to it slightly 

 or not at all. Pectoral with a shallow notch, the lower lobe consist- 

 mg of six rays, not reaching posterior margin of disk. Disk larger 



than in C. callyodon, its diameter slightly 

 J\\\\Uh,, more than half length of head, equaling 

 the distance from vent to front of anal fin. 



(Fig. 1.) , 



Coloration resembling that of C. callyo- 

 don, but with the bars on fi^ns and body 

 often more pronounced and the spotted 

 Fig. 1.— Relative size and position coloration sometimes Seen in C. callyodon 

 cliSLsr ^'^^°'^^'^°^-^^''=^ wholly lackmg. Dark above, with an in- 

 distinct mottling of slate and ashy gray, 

 the lower surfaces paler; pectorals with two or three dusky cross- 

 bars; dorsal with twelve dusky bars, the posterior nine or ten extend- 

 ing across the body and on the anal fi.n; caudal with three or four 

 irregular bars ; in many specimens the bars are present only on the 

 fins, leaving the body a uniform olive bro^^^l or slate color, and in some 

 individuals even the bars on the fins are very indistinct or wanting. 

 In addition to the type, 31 specimens were taken in the tide pools 

 at Milne Bay, Simushir Island. 



2. CYCLOGASTER (NEOLIPARIS) SIMUSHIR^, new species. 



Plate 41, fig. 2. 



Type.— Cat. No. 73327, U.S.N.M. A male, 138 mm. in total length, 

 from Milne Bay, Simushir Island, Japan. 



Closely related to C. greenei, differing in the more numerous fin 

 rays, in the shape of the head and body, and in the vent being nearer 

 the disk I 



Measurements in hundredths of length exclusive of caudal fin 

 (120 mm.): Length of head 29.5; depth opposite front of disk 18.5; 

 depth opposite gill slit 25; greatest width of head 24; greatest depth 

 of body 25; depth of caudal peduncle 7; interocular width 12.5; 



