Browne: The Aquatic Coleoptera of the Isle of Man. 155. 
Cymbiodyta ovalis Thoms. Ballaugh (two specimens). 
Paracymus nigroeneus Sahlb. Rushen (Bradda, one speci- 
men) (Bailey). 
Anacena globulus Payk. Rushen (Mull Hill, Surby and 
Bradda); Santon and Spaldrich (?) (Bailey).; Ballaugh ; 
German ; Jurby; Lezayre ; Mallew ; Patrick. 
A. limbata F. Ballaugh (Curragh) (Bailey); Ballaugh ; 
Jurby ; Lezayre. 
A. limbata var. ovata (brown specimens of /imbata!) Andreas; 
Ballaugh ; Jurby; Lezayre. 
Helochares punctatus Sharp. Ballaugh, only locality, but 
very common. 
Laccobius nigriceps Thoms. Rushen (‘ K’ Kentraugh ?) 
(Bailey). Two other specimens in the collection without 
locality. 
L. ytenensis Sharp [sinuatus, Brit. Auct.|. Rushen (Mull 
Hill) (Bailey), one other specimen in the collection without 
locality. German (one ¢@). 
L. alutaceus Thom. Ballaugh (Curragh) (Bailey) ; Andreas 
Ballaugh ; Jurby; Lezayre. 
L. minutus L. Jurby (one or two specimens only). 
L. bipunctatus F. Andreas; Jurby. 
Berosus affinis Brullé. Andreas (in one pond only, but 
common). 
Limnebius truncatellus Thunb. Arbory ; Mallew ; Rushen ; 
Santon (Bailey); Andreas; Ballaugh; German ; Jurby ; 
Lezayre ; Patrick. 
Chetarthria seminulum Herbst. Ballaugh (Curragh) ; 
Rushen (Mull Hill) ; (Bailey) ; Jurby ; Lezayre. 
Helophorus porculus Bedel. Rushen (Croitecaley, Port 
Erin and Surby) (Bailey). 
H. nubilus F. Rushen (Ballygawne, Bradda and Port 
Erin) (Bailey). 
H. aquaticus L. Arbory; Bride; Mallew ; Rushen 
(Bailey); Andreas; Ballaugh; German; Jurby; Lezayre. 
Almost all the specimens were of the small form (e@qualis) 
between which and the type I can find no distinction except 
in size. 
H. viridicollis Steph. (eneipennis Thoms). Mallew ; Rus- 
hen (Bailey) ; Andreas ; Ballaugh ; German; Jurby ; Lezayre 
Patrick. 
H. affinis Marsh (griseus Herbst.) Andreas ; Jurby. 
H. brevipalpis Bedel. Mallew; Rushen (Bailey) ; Andreas ; 
Ballaugh ; German; Jurby; Lezayre ; Michael ; Patrick. 
Hydvochus angustatus Germ. Ballaugh ; Lezayre. 
Octhebius pygmaeus F. Andreas; Jurby ; Lezayre. 
O. bicolon Germ. Rushen (Ballakeigan, Colby Glen, 
Perwick) (Bailey) ; Lezayre (Sulby R., one specimen). 
1git April 1. 
