and Gyrinide of Australasia. 19 
4. A. Bakewelli, n. sp. 
A, ovalis, subtilissime reticulosus, striato-punctatus, niger, nitidus ; capite 
impunctato, inter oculos undique foveolato, nigro, ore mentoque rufis ; 
thorace antice emarginato, lateribus rotundatis, tenue marginatis, basi 
sinuato, antice ad marginem punctis transverse notato; elytris punc- 
torum seriebus duabus subtiliter notatis, ad latera infra medium obscure 
rufo maculatis ; pedibus antennisque rufis, corpore subtus fusco-rufo. 
Long. corp. 3 lin., lat. 13 lin. 
A. Bakewelli resembles in size and appearance A. affinis, Payk. ; 
it is (besides other differences) more ovate and less parallel: it is pro- 
bable that in some examples the subcircular rufous marking near 
the margin of the elytra may be obsolete. 
Two examples of the species, which I name after my friend Mr. 
Bakewell (whose labours have added so much to our lists of S. Aus- 
tralian Coleoptera), are in that gentleman’s collection. 
5. A. reticulosus, n. sp. 
A, suboyalis, sat brevis, niger, opacus, subtilissime vermiculatus ; capite 
inter oculos bipunctato, nigro, antice rufo-fusco; thorace ad latera. 
tenuiter marginato, basi sinuato, juxta marginem anteriorem transverse 
subpunctato, ad latera tenuiter rufo; elytris sat latis, punctorum 
seriebus duabus obsoletis, nigris, ad latera plus minus rufis; corpore 
subtus rufo-fusco ; pedibus antennisque rufis. 
Long. corp. 3} lin., lat. 12 lin. 
The whole upper surface of this species is in both sexes covered 
with very minute punctate lines, in the thorax for the most part 
tortuous, in the elytra interlacing with each other at right angles. 
There is considerable variation in the lateral marking of the elytra ; 
its position is not parallel to the margin, but rather in a more direct 
line from the shoulders to the apex ; in some examples it is almost 
obsolete ; in others it is continued in a broad irregular marking, 
at the shoulder and postmedially flavous or rufo-flavous. 
The only examples that I have seen are four specimens taken by 
Mr. Bakewell in Victoria. 
6. A. parvulus, Boisd. (Voy. d’Astrol. ii. p. 50). Sandwich Islands. 
7. A. decempunctatus, Fab. N.E. Australia. 
8 
9 
. A. octodecim-maculatus, MacLeay. Java. 
. A. lugubris, Homb. & Jaeq. Tasmania. 
Genus 4. Corgnatus, Erichs. (Gen. Dytis. 1832, p. 38). 
This genus cannot strictly be separated from Agabus, although it 
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