2802 Bulletin 47, Uftited States National Mnscum. 



368 is 8uffici('utly full. See Jordan, Proc. Cal. Ac. Sci., ser. 2, vol. vi, 

 1896, 206, pi. 21. 



Page 369. No. 604, Labichthys elongatus, is a true Arocettina, having 

 the vent far behind the head. It should stand as — 



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



Page 376. After Myrichthys iigrinus, Girard, add: 



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



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

 each side of loveer 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 2i in snout; 

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

 than 1^ of head ; the angle of mouth well behind eye. Interorbital width 

 about f 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 4J times in that of trunk; head and trunk 

 together shorter than tail, aud contained 2=^ to 2^ times in tot.al length. 

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

 Dorsal beginning close l)ehind nape, much in front of gill opening; tins 

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

 series of large round l>rown 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 arc partly confluent, the fin narrowly margiued witli 

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

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

 moi'e numerous toward the snout; lower jaw with dark spots; iris light 

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

 lan. (Ci^cJro/', a spike; ot^pd, tail.) 



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

 original type iigured 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, aud no 

 second specimen of the true Myrichfhys tigriiius has been found anywhere. 



Ophichthyg xysturus, Jordan & Gilbert, Proc. U. S. Nat. Mus. 1881, 346, Mazatlan, Mex- 

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



fil5(b). MTRICHTHYS PANTOSTIGMIUS, Jordan & McGregor. 



Head 3.^ in trunk; head and trunk IJ 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 



