[55] FLOUNDERS AND SOLES. 279 



In the Museum of Comparative Zoology are specimens of this species ' 

 from Bio Janeiro, Santos, Victoria, Para, and Sambaia, in Brazil. The 

 largest of these is G inches in length. Head 5 in length, depth, 1^; 

 scales, 44; D. 85; A. 07. 



A re-examinatiou of the specimens collected by Prof. O. P. Jenkins 

 at Beaufort, N. C, and described by Dr. Jordan under the name of 

 Etropus microstomus, shows that these are identical with the specimens 

 of Etropus from Charleston, Cedar Keys, New Orleans, and Galveston. 

 These differ from the types of Etropus crossotus only in the slightly 

 greater depth of the body, and in the slightly larger size of the scales. 

 We now refer them to the latter species without much hesitation, hardly 

 regarding them worthy of even subspecific distinction. 



Genus XXIIL— THYSANOPSETTA. 



Thysanopsetta Giintlier, Voyage Challenger, Shore Fishes, 1880, 22 (naresi). 



Type: Thysanopsetta naresi Giintlier. 



We have not seen the typical species of Thysanopsetta. Prom the 

 figure and description it would seem that the genus differs from Etropus 

 only in having the teeth in villiform bands. 



ANALYSIS OF SPECIES OF THYSANOPSETTA. 



a. [Body oblong ; head small ; eyes 3| in head, well separated, the interorbital space 

 being flat and scaly ; mouth moderate, the maxillary more than one-third head ; 

 teeth in villiform bauds; scales adherent, ctenoid; a fleshy lobe behind ventrals ; 

 lateral line straight; head, 5; depth, 2J ; D. 87; A. 59 ; lat. 1. 7G (in plate) ; color, 

 nearly uniform brownish, the body and fins mottled.] {Giintlier) Naresi, 63. 



63. THYSANOPSETTA NARESI. 



Thysanopsetta naresi Giinther, Voyage Challenger, Shore Fishes, 1880, 22. (Cape Vir- 

 gin, Straits of Magellan.) 



Habitat. — Straits of Magellan. 



We kuow this species from the original figure and description only. 



Genus XXIV.— MONOLENE. 



Monolene Goode, Proc. U. S. Nat. Mus., 1880, 337 (sessilicauda). 



Type : Monolene sessilicauda Goode. 



This peculiar genus of deep-sea flounders is probably allied to Amo- 

 glossus and Citharichthys. Of this we cannot speak with certainty, not 

 having examined any members of the group, and the insertion of the 

 ventral fins has not been described in either of t?he two known species. 



analysis of species of monolene. 



a. [Dorsal rays, 99 to 103; anal rays, 79 to 84 ; scales cf blind side ctenoid, 23-92-25; 

 head everywhere closely scaly, even to the lips and front of snout ; mouth oblique, 

 the maxillary less than one-third length of head ; teeth, uniserial, subequal; eyes 

 very close together, the interorbital space a very narrow ridge ; arch of lateral line 

 very peculiar, the curve having two angles ; head 5 iu length ; depth, 2| ; ashy 

 brown, with spots of darker brown ; pectoral barred; vertebra 43.] (Goode) 



Sessilicauda, G4. 



