Zoological Society. 309 
wants the extensible dewlap, the bristly tail, pedunculated warts or 
branching cirri, which characterize other groups of Monacantht. 
Axeureres macutosus (Nob.). Speckled Leather Jacket. Al. re- 
tro-scaber, sub-ovalis, ventre prominulo ; angulis quatuor aculet 
dorsalis spiniferis ; pinnd caude rotundatd, sub finem nigro fasci- 
atd ; corpore colore murino ? nebuloso-guttato. 
Radii :—P. 11, aut 12; D. 2—34; A. 32; C. 12. 
This is a small Aleuteres, seldom exceeding five inches in length, 
and haying a sub-oval form, the back being less arched than the 
belly. The dorsal and anal fins are arched, the curvature being 
more abrupt anteriorly. The dorsal spine is four-sided, with rows 
of prickles pointing downwards on each of the angles. The minute 
second spine is very slender. As has been remarked by Salvian, this 
small spine aids like a trigger in fixing the large one in any required 
position. The colour of the fish after being kept in spirits is dull 
oliye-brown or mouse-colour, with scattered clusters of small dark 
‘spots. The subterminal black band on the caudal fin is very faint. 
ALEuTERES PARAGAUDATUS (Nob.). Trim Leather Jacket. Al., 
retro-scaber ; dorso depresso ex ore usque ad pinnam secundam 
fere recto; ventre regulariter arcuato; pinnd caude@ rotundatd, 
sub finem nigro-fasciatd ; colore corporis murino ; fascid pallida 
(flavd) 2 mento per pinnam pectoralem medio in latere tractd, sub 
qud lined ceruled ; lined alterd ceruled 2 mento per oculum et ul- 
tra extensd ; corpore subtiis et postice ceruleis guttis pulchré in- 
terstincto. 
Radi :-—P. 12; D. 2—34; A. 32; C. 12. 
This handsome Aleuteres is named in allusion to the striped upper 
vestments of the Roman ladies. Like the preceding, it is a small- 
sized fish. One of our specimens had the gut and the whole abdo- 
men distended by a large Jdotea, full of roe, not at all crushed, and 
apparently little digested: a portion_of its tail fin protruded at the 
anus of the Aleuteres. 
The Aleuteres Ayraud of Shark Bay (Quoy et Gaimard) differs 
from this and the preceding species in the dorsal spine having only 
two rows of prickles, and in the dorsal fin having a concave outline, 
and reaching to the caudal fin. It is also differently striped, and no 
spots are mentioned. ‘The Aleuteres spilomelanurus taken by the 
same naturalists at Port Jackson resembles the Port Arthur fish in the 
form of the dorsal spine and shape of the three vertical fins, but the 
numbers of the rays in the dorsal and anal are different; there are 
no spots on the body, and merely a single dark line extending from 
the angle of the mouth along the higher part of the sides. In both 
the Port Arthur Aleuteres the minute prickles of the skin, when ex- 
amined by a good microscope, appear to be solitary, and to spring 
from a globular base. 
Cattoruynouus Tasmanivs (Nob.). Tasmanian Callorhynchus. 
Call., pinnis pectoralibus ad ventrales haud attingentibus ; pinnd 
dorsi secundd pone ventrales incipienti, ante lobum anteriorem in- 
Seriorem pinne caude desinenti. 
This species agrees with the Callorhynchus Smythi of Benne 
