1904.] FOUR H1THERTO UNDESCRIBED FISHES. 5 



Hab. Faroe Channel. Depth about 1200 metres. Tem- 

 perature at the bottom -\- 8.07° C. 



Chimaera (Bathyalopex) mirabilis, n. sp. 



Allied to Ch. mitsukurii, Jord. and Snyder (1904) from 

 Japan 1 , but distinguished by its I arger eyes ; the dorsal spine 

 being smooth anteriorly, and the margin of 2nd dorsal undu- 

 lated. 



Both species are different from Ch. monstrosa (and its allies) 

 in having the anal and the caudal fins continuous (subgenus 

 Bathyalopex), as well as in the arrangement of the lateral 

 lines of the head. 



Diagn. (younger specimens). 



Head short and blunt, equal in length to its distance from 

 the vent. 



Eyes very large, the longitudinal diameter equal to the 

 length of the snout, and contained twice in the length of the 

 head. 



Fins. First dorsal rather close to the second; dorsal spine 

 smooth anteriorly, serrated on posterior edges. 



Second dorsal undulated, very Iovv in the middle. 



Anal confluent with caudal, forming a single fin; caudal 

 filament very long. 



Pectorals long; when depressed the tip reaches beyond the 

 middle of the ventrals. 



Ventrals shorter than the head. 



Lateral line. Opercular line of the head not originating from 

 the suborbital line, but forming a branch from the malar line. 



1 Ch. phantasma, Jord. and Fowler, Proc. U. S. Nat. Mus., March 30th, 



1903, Vol. XXVI, No. 1324, p, 669, Wash. 1903; (nee Ch. phantasma, 

 Jord. and Snyder 1900, Proc. U. S. Nat. Mus., Dec. lOth, 1900. Vol. 

 XXIII, No. 1213, p. 338, Wash. 1901). 



Chimaera mitsukurii, Jord. and Snyder, Proc. U. S. Nat. Mus 



1904, Vol. XXVII, No. 1356, p. 224, Wash. 1904^ 



