PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM 615 



105. Prionotus tribulns C. & V. — Sea Eohin. 

 Abundant. 



106. Prionotus sarritor sii. nov. — Sea Eohin (29675.) 



Prionoim evolans J. & G. Proc. U. S. Nat. Miis., 1878,374. (Not Triyla evo- 



lana L.) 

 Prionotus evolans J. & G. Syu. Fish N. A., 735. 



This form is in many respects intermediate between P. strigatua C. & 

 v., and P. trihulus C. & V. The color is In most particulars like that 

 of trihulus, but the white spots on back and sides are much less numer- 

 ous, or wholly wanting, and the brown bar bacliward from humeral 

 spine is present, as in strigatuSj and the dorsal fin is not barred ; the 

 gill rakers are, as in strigatus, slender and fine, 18 to 20 developed on 

 lower limb ; the spines on the head are not strong as in tribuhis, that 

 above orbit behind not conspicuously raised above surface of head ; in 

 two specimens from Beaufort, N. C, the pectorals are much lengthened, 

 reaching nearly to base of caudal, but this seems to be here, as in tribu- 

 lus, a very variable feature, as specimens from Charleston have the pec- 

 torals but one-half length of body. 



Head 2f in length ; depth 4^. D. X— 12 ; A. 11. 



Lat. 1. 53 (pores). Soft dorsal high, the longest ray = longest spine, 

 2J in head ; caudal 3| in length. 



Color in life, olive-brown above, becoming light olive on sides, white 

 below ; back with three brown cross-bars, the first under spinous dorsal, 

 the second under first third of second dorsal, the third under its end, 

 all of these bars extending downwards and forwards to lateral line, the 

 posterior forming a brown blotch on base of last dorsal rays; back and 

 sides with numerous small w^hite spots, irregular in shape and size : 

 these often wantiiig; a lateral line running in a narrow brown streak ; 

 distinct broad reddish-brown streak from humeral spine backwards to 

 opposite end of anal ; traces of a narrow streak above this. Branchios- 

 tegal membrane yellowish above ; a dark brown streak from angle of 

 mouth to base of preopercular spine ; opercle dusky brown without, 

 deep reddish-brown within. Caudal with a light brown bar at base, 

 then a broad translucent bar, the terminal two-thirds orange-yellow, 

 narrowly margined behind with white. 



Spinous dorsal dusky, with a diffuse black blotch between fourth and 

 sixth rays above; soft dorsal translucent brownish, without streaks of 

 any kind; anal wine-color, translucent at base and tip. Ventrals light 

 reddish. Pectorals glaucous green within, the lower rays reddish, the 

 upper white ; the outer side dark greenish-brown, unbarred, with a very 

 narrow blue margin behind. 



The description given by Linnaeus of " Trigla evolans,^^ is too meager 

 to permit identification, and the name should therefore not be used for 

 any of our species. We are obliged also to reject the name lineata as 

 applied to our northern species, the Trigla lineata of Mitchill being 

 merely a mistaken identification of Trigla lineata Bloch, as described by 



