316 REPORT OF COMMISSIONER OF FISH AND FISHERIES [92] 
and Sloane in Jamaica, a region in which the present species does not 
occur. 
The specific name next in date to lineatus is that of Achirus fasciatus 
Lacépéde. Eacépéde quotes in his synonymy only the Plewronectes 
achirus of the tenth edition of the Systema, which is a species from 
Surinam. His description of Achirus fasciatus is however wholly taken 
from the account given by Linneus of the fish sent by Garden. It 
therefore belongs to the present species, for which fasciatus seems to 
be the oldest tenable name. 
The Pleuronectes apoda of Mitchill seems to be this species, as Mitchill 
expressly states that it has no pectoral fins. DeKay, however, speaks 
of it as a species of Monochirus. If DeKay examined Mitchill’s speci- 
men we may infer that the latter belonged to A. lineatus rather than 
to A. fasciatus. . 
This species has not yet been recorded from the West Indies. The — 
form found along the Gulf coast has been described as a distinct species 
under the name of Solea browni. The differences are not very evident. 
We have compared a number of specimens from Boston (fasciatus) with 
others from Pensacola, and find the following differences, none of 
which are constant: In the Gulf variety (browni) the blind side is 
always immaculate, while in almost all Atlantic examples (fasciatus) 
the blind side is profusely covered with round dark spots. In one 
specimen, however (11360, Boston), the blind side is immaculate. The 
darker cross-streaks on the eyed side are usually broader and more 
numerous in southern specimens, and the scales on the blind side of the . 
head rougher. There are no constant differences either in the fin-rays 
or in the scales. 
We have examined specimens of this species from Boston, Chester- 
town, Tarrytown, New York, Port Monmouth, Havre de Grace, Poto- 
mac River, Neuse River, Beaufort, Charleston, Pensacola, Mobile, and 
Galveston. In one large specimen from Pensacola (11482 M. C. Z.) 
there is a rudiment of a pectoral fin on the eyed side. It consists of a 
single ray two-thirds as long as the eye. 
117. ACHIRUS PANAMENSIS. 
Solea panamensis Steindachner, Ichthyol. Beitriige, v, 10, 1876, Taf. ii (Panama). 
Habitat.—Pacifie coast of tropical America, Panama. 
Our knowledge of this species is derived from the description and 
excellent figure of Dr. Steindachner. The species is evidently very 
closely related to Achirus fasciatus, which it closely resembles in form 
and color. 
118. ACHIRUS JENYNSI. 
Achirus lineatus Jenyns, Voyage Beagle, Fishes, 1842, 139 (Rio de la Plata) (not P, 
lineatus L.). 
Solea jenynsi Giinther, Cat, Fish. Brit. Mus., iv, 476, 1862 (after Jenyns). 
Habitat.—Region about Rio de la Plata. 
