and Gyrinide of Australasea. 21 
are entirely absent ; this latter specific character is more valuable 
than the former: three examples from Melbourne present the un- 
foveolated thorax with elytra almost free from the minute impunc- 
tate lines, but possessing the stric-like punctures as distinctly as the 
species from Victoria. I am disposed to consider these three last 
examples as but a geographical variety, and all as different speci- 
fically from C. acuductus. 
Mr. Bakewell has taken this species in Victoria, and has liberally 
presented examples (with those of many other interesting species) to 
the British Museum, as well as to my own collection. 
2. C. acuductus, n. sp. 
C. oblongo-ovalis, elongatulus, haud punctato-striatus, niger, ad latera 
interdum rufescens; capite inter oculos bipunctato; thorace lateribus 
subrotundatis, ad margines undique antice et postice depresso et 
fortiter punctato, disco plano lineolis quam plurimis veluti acuductis 
ornato ; elytris sat productis, hawd punctato-striatis, passim lineis punc- 
tatis quasi acuductis ornatis, nigris; pedibus antennisque rufo-fuscis, 
corpore subtus nigro. 
Long. corp. 43 lin., lat. 14 lin. 
After some hesitation, I record this as a species separate from C. 
Australie; the absence of. any punctate striations, especially when 
added to the entirely different arrangement of minute linear punc- 
tures on the elytra, forbids the two forms to be placed together ; of 
either I have before me both sexes. The only examples that I have 
seen were taken by Mr. Bakewell, and, by that gentleman’s kindness, 
have been placed in the collection of the British Museum and in my 
cabinet, as well as his own. 
3. C. simplex, n. sp. 
C. niger, nitidus, elongato-ovalis, parallelus, sparsim punctatulus; capite 
inter oculos undique binotato, ad basin subtiliter et parce punctato, ad 
apicem rufo ; thorace hand antice emarginato, lateribus ad apicem con- 
strictis et subrotundatis, tenuiter marginatis, basi recto haud sinuato, 
ad discum levi, antice juxta marginem punctis transverse notato; 
elytris parallelis, levibus, quatuor aut aliquando quinque seriebus 
punctorum leviter et sparse notatis ; pedibus antennisque rufis, corpore 
subtus nigro. 
Long. corp. 23-3 lin., lat. 1-1} lin. 
Distinguishable by its parallel and subdepressed form, and its 
smooth, unstriated elytra. 
Taken by Mr. Bakewell in Tasmania, and by him presented to 
my cabinet. 
