2802 Bulletin ^7, United States National Museum. 



368 is sufficiently full. See Jordan, Proc. Cal. Ac. Sci., ser. 2, vol. vi, 

 1896, 206, pi. 21. 



Page 369. No. 604, Labichihys elongatus, is a true Avocettina, having 

 the vent far behind the head. It should stand as 



602(a). AVOCETTIXA ELONGATA (Gill & Ryder). 

 Page 376. After Myrichthys Hgrinus, Girard, add: 



61o(a). MTRICHTHYS XYSTURUS, Jordan & Gilbert. 



Teeth all more or less blunt and granular ; a band of 3 or 4 series on 

 each side of lower jaw; a band of 2 rows on each side of upper jaw; 

 vomer with a long series divided into 2 for about i its length. 

 Anterior nasal tubes conspicuous, turned downward. Eye 2| in snout; 

 front of eye above middle of gape, the length of which is a little more 

 than of head; the angle of mouth well behind eye. Interorbital width 

 about $- length of the rather long and slender snout, which projects much 

 beyond lower jaw, the tip of the latter about reaching middle of snout. 

 Length of head contained 4 times in that of trunk ; head and trunk 

 together shorter thau tail, and contained 2 to 2| times in total length. 

 Pectoral very small, its length about equal to depth of gill opening. 

 Dorsal beginning close behind nape, much in front of gill opening; fins 

 low; tail pointed, the tip sharp. Color light olive; sides each with 3 

 series of large round brown spots, those of the 2 upper series of equal 

 size, those of lower scarcely | as large, faint, and often obsolete 

 anteriorly ; the spots irregular in their arrangement, those of the upper 

 series usually twice as numerous as those of the next ; those of the upper 

 series along base of dorsal fin extending partly on the base of the fin; 

 lower series of spots along base of anal, some of them extending on 

 the fin or even entirely upon it; on the belly are sometimes small dark 

 spots, scarcely arranged in series; dorsal tin with a terminal series of 

 dark spots, which are partly confluent, the fin narrowly margined with 

 white; anal reddish, with a lighter margin; pectoral with a blackish 

 blotch ; head covered with round black spots, which become smaller and 

 more numerous toward the snout; lower jaw with dark spots; iris light 

 yellow. Pacific coast of Mexico ; common among the rocks about Mazat- 

 lau. (Cutfror, a spike ; ovpa, tail.) 



A species distinct from M. tigrinus, which is known only from the 

 original type figured by Jordan & Davis, and described in the text of Part I 

 of this work, page 376. This specimen, said to be from "Adair Bay, 

 Oregon," may not be American, as there is no such bay in- Oregon, and no 

 second specimen of the true Myrichthys tigrinus has been found anywhere. 



Ophichthys xysturus, JORDAN & GILBERT, Proc. U. S. Nat. Mus. 1881, 346, Mazatlan, Mex- 

 ico. (Type No. 28142. CoU. Dr. Gilbert.) 



615(1)). MTRICHTHTS PANT08TIGMIUS, Jordan.& McGregor. 



Head 3 in trunk; head and trunk 1^ in tail; cleft of mouth 3 in head; 

 eye 2| in snout, which is 5 in head; pectorals 2 in snout; anterior nasal 

 tube equal to the eye. Color olivaceous, with distinct rows of roundish 



