984 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxvni. 



anal than the posterior raarg-in of the disk. In younger individuals 

 the vent is more posteriorly placed, its distance from front of anal 

 v^arying from one-third to two-thirds the distance to edge of disk, 

 according to the size of the specimen. The teeth seem to be uniformly, 

 in 13 or 14 series in each half of either jaw. 



Four ditierent types of coloration are found among the new material: 

 (1) Nearly plain brown with obscure dusky mottlings, the pectoral 

 tinely cross-barred with black and white. (2) The entiiv upper parts, 

 including the dorsal tin, marked with parallel w^av}" light streaks with 

 darker margins, the intervals l)etween the streaks dusky olive; pecto- 

 ral more obscu'vly ))arred. (3) Entire upper parts dark olive, thickly 

 covered with small, white spots less than the diameter of the pupil. 

 (4) Lighter olive, marked with few whitish or silver}- white narrow 

 streaks or bars, which are black margined. One series of these cross 

 the dorsal tin, another the anal, l)oth continued a varia))le distance on 

 the bodv. Other streaks or spots occupy the top and sides of the 

 head and may be symmetrically disposed on the two sides of the same 

 individual, although not agreeing in ditierent specimens. An approach 

 to this type is found in one specimen in which the l)rown of the sides 

 i,s divided by coarsely reticulating light lines, some of which run out 

 on the bases of the tins. 



PLECTOBRANCHUS EVIDES Gilbert. 



The present collection contains a tine specimen of this species, 129 

 mm. long, from Hood's Canal; the second to be placed on record. The 

 type was dredged by the U. S. Bureau of Fisheries steamer Alhatrosx 

 in shallow water oU' the coast of Oregon. 



The pair of canines in the front of the premaxillaries are less marked 

 than the type description would indicate, being evident, but not much 

 larger than the remaining teeth of the outer series. The mandibular 

 teeth form anteriorly a moderate band which tapers behind, but is not 

 reduced to a single (irregular) series much in advance of the corner of 

 the mouth. No anterior canines are visible on the mandible in this 

 specimen. 



No pores are evident in the lateral line, l)ut its course is indicated 

 b}^ a series of widely spaced whitish bodies, nnu-h less numerous than 

 the scales. 



The nostril opens in a short tube with thin walls, collapsing in pre- 

 served specimens, and resembling then a simple tiap. 



The dorsal contains 55 spines; the anal 2 spines and 35 ra3's; the 

 pectoral 15 rays. 



Meai<nrempnli^ In hundredths of length, icitJiout ratida!. 



Length of head 21 



Length of snout 5 



Diameter of eye 5. 5 



