On the Gsophageal Teeth of the Stromateidee. 249 
head and thorax densely covered with white hair, tinged with 
ochreous on vertex and scutellum; tegule clear testaceous ; 
wings clear, stigma ferruginous; hind femora and tibive clear 
red, with much light fulvous hair; abdomen with very broad 
felt-like bands. . 
Deesa, India, March 1900 (Nurse). 
In Feb. 1899 Col. Nurse collected a male at Deesa which 
may, I think, be referred here. It is, of course, smaller 
(length hardly 11 mm.) and more slender, but it has the 
same general appearance. The hind femora, however, are 
dark and their tibiew are strongly infuscated except apically, 
while all the tarsi are ferruginous. The flagellum is dusky 
reddish beneath and the malar space is longer than broad. 
This male is very easily known from C. hyleiformis, Eversm., 
by the long malar space and the total lack of coarse pungtures 
on the exposed parts of abdomen. ‘The face and front are 
densely covered with pure white hair, and there is a fringe of 
very long hair about the ocelli. The hair of the metathorax 
is pure white, that of the scutellum very faintly yellowish. 
Specimens of all the new forms described above will be 
found in the Nurse collection at the British Museum. 
XXVII.—Note on the Hsophageal Teeth of the Stromateide, 
By J. D. F. Grucurist, M.A., D.Sc. 
In this family of fishes certain structures, variously described 
as “teeth,” ‘‘tooth-like processes,” ‘long barbed teeth,” 
“internal papille beset with setiform teeth,” &c., are men- 
tioned as occurring in the cesophagus. The presence of teeth, 
or structures homologous with teeth, is scarcely to be expected 
in this region of the alimentary tract, and is therefore of some 
interest. The fact also that these “ teeth ” are found in two 
large saccular outgrowths of the alimentary tract, just behind 
the branchial region, is suggestive of a pair of closed gill- 
slits, and is another point worthy of attention. 
These toothed sacs do not seem to have been further 
investigated or compared in different types, and the examina- 
tion of species of Psenes, Stromateus, and Nomeus show some 
noteworthy features and differences. In these, internal 
papillaz——or, rather, lobes—beset with setiform structures were 
found, and, in one species of Psenes and Stromateus, tooth- 
like processes with barbs. The last cases present some 
Ann. & Mag. N. Hist. Ser. 9. Vol. ix. 17 
