GYRINIDAE. 33 



dorsalis* Fabr. El. 1, 269. rfwWwsMels. Pr. Acad. 2, 29. 



luridipennis Mels. Pr. Acacl. 2, 28. Lee. L. Sup. 216. 



lacustris Say, Am. Phil. Tr. 2, 103. pulicarius Aube, Hydr. p. 495. 



afFmisSay, Am. Phil. Tr. 2, 104. nanus A.M\>Q, p. 496. 



granarius Aube, p. 501. [1G4. Aube, Hydr. p. 471. 



punctatus Say, 1824. Long's Exp. 2, 271. Harr. 1828, N. E. Farmer, 7, 



cuspidatus Kunze, Aube, 477. pustulatus Mels. (Hygrotus) Pr. Acad. 2, 29. 



convexus Aub6, p. 479. 



CeliliaAube. 

 angustata Aub<5, p. 447. 



f laliplus Latr. 



triopsis Say, Am. Phil. Tr. 2, 100. Aube, Hydr. p. 27. 

 immaculaticollis Harr. 1828. N. E. Farmer, 7, 156. americanus Aube, 21. 

 fasciatus Aube, p. 31. 

 pantherirms Aube, p. 29. 



impressus Fabr. El. 1, 271; teste Kirb. N. Z. 4, 65. 

 nitensLec. Agass. L. Sup. p. 212. 

 borealis Lee. ib. 



cribrarius Lee. ib. 



concolor Lee. Ann. Lye. 5, 201. 



Ciicmiclotiis 



duodecimpunctatus Say (Haliplus), Am. Tr. 2, 106; 4, 446. Aube, 38. 

 callosus Lee. Ann. Lye. 5, 201. 

 simplex Lee. ib. 



GYRINIDAE. 



Dlneutes 

 CTCLINUS Kirb. 



emarginatus Say, Am. Phil. Tr. 2, 108 ; 4, 447. 



vittatusGerm. Sp. Nov. p. 32. Aube, Hydr. p. 768. 



americanus Linu. Aube", p. 777. Knock, Mels. Cat. 1083. 



assimilis Kirb. N. Z. 87. Aube", p. 778. americanus Say, Am. Tr. 2, 107. 



opacus Mels. Pr. Acad. 2, 29. 



labratus Mels. ib. discolor ? Aube, p. 784. 



Linn. 





borealis Aube, Hydr. p. 692. 1084 M. C. 

 affim's Aube", ib. 669. 

 SayiAube, ib. 698. 



* As Dr. Melsheimer's specimens of this species, by their condition ami method of preserva- 

 tion, appear to have been collected in Europe, fresh evidence is required before it can be admit- 

 ted into our fauna. EDS. 

 3 



