152 BULLETIN 150, UNITED STATES NATIONAL MUSEUM 



prominent tube. Eye moderate; the lower half .silvery; pupil 

 elliptical, horizontal, apparently not partially divided as in Crys- 

 tallichtJiys. In some specimens the eye is black and the pupil dis- 

 tended and round. Gill slit small, above the pectoral fin. Pores 

 2-5-6-1 on a specimen from Albatross Station 4855; rudimentary 

 pores on the sides of the body as in species of Liparis. Pyloric 

 coeca 71, in one specimen on the right side of the body cavity, 

 1.8 in the head. 



Anterior dorsal rays buried in pseudotissue beneath the skin. Anal 

 similar to the dorsal. Caudal truncate, connected for a little more 

 than half its length to the anal fin. Pectoral fin notched; the lower 

 lobe more distinct than figured, reaching the vent, 2.4 in the head, 

 composed of thickened rays as in Liparis. Disk large ; tip of mandible 

 to disk 11.2 in the length of the body without caudal. Vent close 

 to the disk. 



Color translucent, pinkish in life; narrow dark bars and spots on 

 the head and body; bars beginning near the median line on the sides 

 and extending onto the dorsal and anal fins, 

 seven above and five below; one bar extending 

 backward from the lip through the eye; two 

 across the top of the head ; other spots and bars 

 on head and body smaller; peritoneum and 

 stomach pale. 



Synopsis. — Dorsal 56; anal 53; pectoral 31; 

 Figure 78.-crystalli as caudal 10; pyloric coeca 71. Depth 3.2-4.7; 

 MATsusHiMAE. T E E T H j^ead 3 .9-4.2 . Eyc 5. 5 lu hcad ; dlsk 3 . Body 

 deep and much compressed, gelatinous. Teeth 

 blunt, strongly trilobed. Snout distinctly projecting, cleft. Barbels 

 present on chin and snout. Eye moderate; pupil oval. Gill slit above 

 the pectoral fin. Disk large, flat. Body translucent, pinkish; narrow 

 bars and spots on head and body as in CrystallichtJiys mirahilis; 

 peritoneum pale. 



Genus GYRINICHTHYS Gilbert 



Gyrimci.thys Gilbert, 1895, Rept. U. S. Fish. Comm., 1893, p. 444. 



Disk present; nostril single; teeth simple; suprabranchial pore 

 single; pyloric coeca present; gill slit reduced to a minute pore above 

 the pectoral fin; branchiostegal rsijs 6. 



Genotype.- — GyrinicJitJiys minytremus. 



GYRINICHTHYS MINYTREMUS Gilbert 



Gyrinichthis minytremus Gilbert, 1896, p. 444. — Jordan and Evermann, 

 1898, p. 2137. 



Type.— Fem&le, No. 48617, U.S.N.M.; Albatross Station 3331, 



north of Unalaska, Bering Sea; depth 350 fathoms. Length 72 mm. 



Distribution . — Bering Sea, Albatross Station 333 1 , depth 350 fathoms. 



