FISHES. 
73 
III addition to the differences existing between the species in the form and position of the fins, 
others are furnished by the appendages to the ventrals, which are met with in the males alone. These 
appendages have been described above as to their external form in the Chim. Colliei. Those of the Chim . 
rnonstrosa (Plate 23. Fig. 3) differ remarkably in form and proportion. The anterior appendages are 
oval, somewhat club-shaped, and flattened, and have on their inner margin a row of about six or eight 
sharp short spines, the points of which are directed towards the base of the appendage. The posterior 
appendages are slenderer and much longer than in the Chim . Colliei: each is supported on a pedicle, 
one-eighth of its total length ; and divides at about one-third of its length into three parts, all of equal 
length ; the outer of these divisions is externally cartilaginous, and is covered along its inner side and 
round its tip with a plaited skin which is thickly and strongly spinous ; the posterior division resembles 
the preceding, and is supported by an external cartilage extending about half-way up its hinder side ; 
it is grooved along the whole length of its inner side, or that side which is directed towards the median 
line of the belly of the fish, to receive the third division, which consists of a slender cartilage without any 
covering of spinous skin. The division of this appendage into three parts is mentioned by M. Cuvier 
among the characters of the genus Chimara, L.; but from the description above given of this part in 
the Chim. Colliei, it will be evident that the trifurcation does not extend to the whole genus. 
In the comparatively backward position of the commencement of the second dorsal fin, an approach 
is made to the form of the genus Callorhynchus , Cuv.; but it would still require many other links before 
it would be safe to blend together again this group and Chimara. 
From Mr. Collie’s notes we learn, that 
“The intestinal canal is a wide sac, without external mark of division from the oesophagus to 
the anus. 
“ The liver is large, and of a clay colour. 
“ The spleen is purplish. 
“ The testes are very large, nearly half the size of the same parts in man ; they lie behind the heart, 
and are each furnished with an epididymus placed above and behind them ; hence descend the vasa defe- 
rentia passing over? two cylindrical bodies (vesicula seminales?), and going on each side of the vent.” — C. 
A sketch of the latter parts was made by Mr. Collie, and they are preserved in the only specimen 
of the fish brought home by the expedition. It is deposited in the Museum of the Royal College of 
Surgeons, London, and from it were taken, with the permission of the Board of Curators, the drawings 
whence our engraving was made. The figure of the male appendages of the Chim. rnonstrosa was 
obtained from a specimen in the British Museum. 
At a later period of the voyage, when in the Bay of Coquimbo on the coast of Chili, Mr. Collie 
was enabled to prosecute still farther his anatomical examination of the organs of generation in the 
genus Chimara, L. It is impossible to determine, in the absence of a specimen or of sufficient notes, 
the species on which he operated, and which he terms Chimara callorhynchus ? “ Its length was twenty 
inches; that of the snout two inches ; its tail was tapering and filamentous, and its general colour 
a silvery grey. The male possessed the stipitate moveable knob on the upper and anterior part of the 
head, set with small teeth or spines on its under surface, and received into or raised out of a cavity on 
the head, but not influenced by the movements of the lower jaw, as was the case with the one seen 
at Monterey. 
“ The liver is dark-coloured ; the gall-bladder pale, and the pancreas similarly coloured. The spleen 
is dark purplish, and invests the extremity of the pancreas. The pancreatic and biliary ducts open 
separately into what appears to be the beginning of the stomach, but there is only one gradual contraction 
of the intestinal canal from the oesophagus to the anus, and the tube is continued in a direct line from 
the mouth to the vent. Portions of shells, and other gritty substances, were contained between the 
somewhat obliquely longitudinal folds on the inside of the intestinal cavity. 
“ There is an ample cavity around the anus, and the rectum, as it may be called, readily protrudes. 
In the posterior part of this cavity there is a smooth raised body (clitoris?). 
L 
