24 Bulletin ^7, United States National Museum. 



Subgenus CATULUS. 

 •2:1. CATULUS XANIURUS, Gilbert. 



Snout short, broadly rounded, its length from mouth, i greatest width 

 of snout, which is equal to width of mouth; angle of mouth with folds, 

 that on lower jaw twice as long as on upper, reaching about \ distance 

 to symphysis; teeth small; snout and sides of head with numerous mu- 

 cous pores; eyes large. Pectoral small, rounded; first dorsal over ven- 

 trals, its base 2 in the interspace between dorsals, shorter than that of 

 anal ; second dorsal slightly shorter and lower than first, its base If in 

 anal; caudal ^\ in length; upper edge of caudal in adult with a broad 

 band of enlarged, broad, crowded, tricuspid scales, the band broader than 

 in the European Pristiiirus vii'lastomus, and the scales less acute; scales 

 of body much coarser than in rri^iiurus. Color dark slaty brown, usually 

 uniform above, sometimes with small whitish spots, the fins often edged 

 with paler ; belly pale. L. 2 feet. Pacific coast of Southern California, 

 abundant in rather deep water; apparently a transitional form between 

 Catulus and Pristitirus with the appearance of the former, but approach- 

 ing the latter in the scaling of the tall, (faiioi^, scraper ; ovpd, tail.) 



Catulus xaniurtm, Gilbert, Proc. U. S. Nat. Mus., 1S91, 540; off Southern and Lower Califor- 

 nia, in 184 to 684 fathoms. 



24. CATULUS BRUNNEUS, Gilbert. 



Body deeper, head narrower, snout longer and sharper than in C, 

 xaninrus. Preoral part of snout f greatest width of snout and i Avidth of 

 mouth. Angle of mouth with labial folds, the lower slightly shorter than 

 upper and reaching halfway to symphysis. Eye 3 in snout. Pectorals 

 more adnate to body than usual. First dorsal narrow and high, reaching 

 little beyond ventrals, its base li in interspace between dorsals; second 

 dorsal slightlj^ larger than first ; anal very long, its base 2i times that of 

 either dorsal. Caudal 3^ in body, the scales along its upper edge like 

 those on rest of body, not Saw-like. Uniform warm brown above and 

 below, the snout and edges of fins blackish. L. 20 inches. Gulf of Cal- 

 ifornia, in deep water; one specimen known, a female with mature eggs. 

 (Irunneus, brown.) 



Calitlus hnimtcus, Gilbert, Proc. U. S. Nat. Mus., 1S91, 5-12, Gulf of California. 



25. CATULUS CEPHALUS, Gilbert. 



Allied to C. xaniurus, but the head wider, the snout shorter, the preoral 

 portion less than i its greatest width ; color darker, the belly dark brown 

 like the back, the second dorsal larger, more posteriorly placed, the first 

 dorsal larger, the anal smaller, scarcely larger than the second dorsal ; 

 pores on head large, in rows instead of patches. Tail without band of 

 enlarged scales (these possibly developed in the adult). Teeth mostly 

 tricuspid, the inner sometimes with 4 or even 5 cusps. Size very small, 

 probably not over 15 inches when adult. Gulf of California and southward, 

 in deep water; no full-grown examples known. {ke<Pu1i/, head.) 



CalulM ceplidlm, Gilbert, Proc. U. S. Nat. Mus., 1891, 541, deep water near the Revillagig- 

 edo Islands and in the Gulf of California, in 362 to 460 fathoms. 



