1873.] &* [Cope. 



Blenniidm. 

 Xiphidioi cbuoreum. Cope, sp. nov. 



Depth, 9.5 times into total length ; length of head, 8.25 times in the 

 same . Eye one-seventh of length of head, about equal to the length of 

 the pectoral fin. Teeth, two canines above, four below, sub-equal. 

 Radii, Br. 5 ; D. near 70; A. 48. The dorsal spines do not commence 

 near the head, and the anterior are buried in a soft fold of the skin. 

 Caudal fin not distinct. There are three lateral mucous canals extend- 

 ing the entire length to the caudal fin, which have numerous alternating 

 transverse branches; those of the superior, reaching the base of the dor- 

 sal, the inferior the base of the anal fin. Each of these cross branches 

 has several excretory pores, which are wanting on the main stem. A 

 similar but short tube extends from near the basis of the dorsal fin to 

 the supra-occipital region, and does not branch anteriorly. The superior 

 lateral canal descends to near the median, but does not join it, nor does 

 the latter extend into the inferior. There is another tubular line on 

 each side of the abdomen. These unite on the jugular region by a con- 

 tinuation of the inferior lateral tube. The vent is nearer the end of the 

 muzzle than the end of the caudal fin, by the length of the head. 



Length, eight inches. 



Color, maroon, more reddish below ; a vertical, broad, reddish bar at 

 the base of the tail, beyond which is a dark spot. Two brown radii, 

 black-edged, extending backward and downward from the eye. 



The body of this fish is covered with small scales, except on the jugular 

 and abdominal regions, which are naked. 



This fish is not very different from the Xiphidium mucosum of Girard. 

 It differs in the smaller eye, the more remote origin of the dorsal fin 

 from the head, the lack of anterior union of the mucous canals, and the 

 coloration, &c, all according to Girard' s description. 



Centroxotus l^etus. Cope, sp. nov. 



Represented by two rather brilliantly colored specimens. They indi- 

 cate a species allied to the C. ornatus, Girard,* of which the Academy of 

 Natural Sciences possesses numerous specimens from Puget's Sound, 

 also from Prof. George Davidson. 



Length of pectoral fin less than one-third that of head ; eye, with 

 diameter exceeding length of muzzle, and one-fifth length of head. 

 Ventral fins very small. First dorsal spine above pectoral fin. Radii, 

 D. 78 ; A. II, 38. Caudal fin not separated by a constriction from either 

 the dorsal or the anal fins. 



Length four inches, depth contained 8.5 times in it, a very little ex- 

 ceeding the length of the head. 



Color roseate ; the dorsal region and upper parts of head purple. There 

 are 13 spots, which extend across the dorsal fin to the adjacent dorsaj 

 region, which were probably yellow, each bounded by parallel bars of 

 * See United States Pacific Railroad Survey, X , p. 116, Tab. xxv. 



