On Aquatic Carnivorous Coleoptera or Dytiscida. 387 
the fifth rather long; the antenne are slender and quite simple; altogether it is 
highly probable that this is the female. 
Australia, (Murray River). 163. 
364. Hydroporus meadfooti, Clk., M.C.—Ovalis, subopacus, nigricans, capite fusco 
obscure testaceo-maculato, prothorace lateribus rufis, medio fusco, elytris fuscis 
vage testaceo-maculatis, antennis fusco-testaceis, pedibus obscure testaceis ; 
prothorace utrinque plica bene elevata, inter plicas transversim sat depresso ; corpore 
dense subtiliter punctato, elytris evidenter subtiliter pubescentibus. Long. 24, lat. 
1¢ m.m. 
Mas, prothoracis lateribus rectis; antennis paulo elongatis medio leviter 
incrassatis ; tarsis anterioribus articulis basalibus bene dilatatis ; tarsis intermediis 
elongatis, articulis basalibus sat dilatatis. 
Fem., paulo minor, prothoracis lateribus pone medium vix distincte constrictis, 
antennis gracilibus, tarsis anterioribus et intermedius articulis basalibus sat 
dilatatis ; tarsis intermedius haud elongatis. 
Australia, (Melbourne). 164. 
365. Hydroporus multimaculatus, Clk., M.C.—Ovalis, subopacus, testaceus, ab- 
domine pectore thoracis medio elytrorumque maculis numerosis nigricantibus; elytris 
dense subtiliter sed subscabroso punctatis, brevissime pubescentibus ; prothorace 
utrinque plica valde elevata, inter plicas transversim depresso. Long. 2%, lat. 13 m.m. 
Mas, prothoracis lateribus rectis; antennis paulo clongatis ; tarsis anterioribus 
articulis basalibus bene dilatatis. 
Fem., prothoracis lateribus medio constrictis, antennis simplicibus; tarsis an- 
terioribus articulis basalibus minus dilatatis. 
This species is easily recognized by the peculiar dense rough punctuation of the 
elytra. 
The female was described by Clark as a distinct species under the name of 
Hydroporus sinuatocollis. 
Australia, (Adelaide and West Australia). 1695. 
366. Sternopriscus wehnckei, n. sp.—Ovalis, subopacus, testaceus, pectore ab- 
domine vertice prothoracisque medio elytrisque fuscis, his maculis parvis irregularibus 
testaceis ; antennis fusco-testaceis, basi dilutiore ; prothorace utrinque plica bene 
elevata, medio leviter transversim impresso ; corpore dense subtiliter punctato, 
elytris subtiliter pubescentibus. Long. 22, lat. 14 m.m. 
TRANS. ROY. DUB. SOC., N.S., VOL. II. 3 E 
