148 BULLETIN 150, UNITED STATES NATIONAL MUSEUM 



CRYSTALUCHTHYS MIRABILIS Jordan and Gilbert 



CrysialUchthys mirabilis Jordan and Gilbert, 1898, p. 2864 (part). — 1899, 

 p. 476, pi. 75 (part). — Evermann and Goldsborough, 1907, p. 333, pi. 20. — 

 Gilbert and Burke, 1912o. p. 75. 



Type.— Female, No. 51466, U.S.N.M.; Albatross Station 3643, off. 

 the southeast coast of Kamchatka; depth 100 fathoms. Length 

 330 mm. 



Distribution. — Southeast coast of Kamchatka, Albatross Stations 

 3643 and 4794; depth 58 to 100 fathoms. Two specimens examined, 

 the largest 330 mm. 



Relationsliips. — C. mirahilis is closely related to C. cyclospilus. It 

 can be distinguished from the latter species by the more compressed 

 head, the long conical divided snout, and the coloration. 



Description of type. — Body gelatinous, deep and compressed; 

 depth 3.7 in length without caudal; body tapering very slowly, 





FiGURK 72.— Crystallichthys cyclospilus. Type, showing pecuuar pupil and blotched 



COLORATION 



holding the depth past the middle then descending rapidly to the 

 caudal. Head much compressed, the sides nearly vertical; profile in 

 an even curve; interorbital narrow; occiput not sw^ollen. Mouth 

 beneath the snout, small; maxillary reaching vertical from posterior 

 margin of pupil. Teeth stout, blunt, distinctly trilobed, in broad 

 bands, close set; outer teeth smaller. Snout divided longitudinally 

 on the low^er surface, conical, a somewhat rigid fold within the cleft, 

 tapering sharply and projecting beyond mouth. Nostril single, in a 

 prominent tube. Eye moderate, 5 in the head; pupil elliptical, 

 partially divided as in C. cyclospilus; eye black. Gill slit small, 4.6 

 in head, above the pectoral fin. Pores on the snout and chin be- 

 tween projecting folds of skin; suprabranchial pores 2. Pyloric 

 coeca absent from the type, 40 in a small specimen. No pricldes. 



Anterior dorsal rays buried in pseudotissue. Anal fin similar 

 to the dorsal. Caudal truncate, connected for half its length to the 



