MERSHON EXPEDITION TO CHARITY ISLANDS. 81 



162. Hydroporus dichrous Melsh. Two specimens found in the nnul 

 of the pond, July 17. 



163. Hydroporus modestus Aube. Two specimens found swinuning in 

 rock pool, on tiie northeast shore, July 17. 



164. Hybius ignarus Lee. Two specimens found in a i)ool, on the 

 northeast shore, June 21. 



165. Ilybius confusus Aube. Four specimens found swimming in a 

 rock pool, on the northeast shore, .luly 17. 



166. Coptotomus interrogatus Fab. Eight specimens found in rock 

 pools, on the northeast shore, June 25. Seven taken by dredging 

 pond, July 17. 



167. Matus bicarinatus Say. Ten specimens found in the rock pools, 

 on the northeast shore, ,lune 23. One found by dredging pond, 

 July 17. Six taken in rock pools, on the northeast shore, July 17. 



168. Agobetes acududus Harr. Two specimens taken in the rock 

 pools, on the northeast shore, July 17. 



169. Hybiosoma bifarius Kirby. One specimen found swimming in 

 rock pool, on the northeast shore, June 21. 



170. Agabus obiusatus Say. One specimen found in a rock pool, on 

 the northeast shore, July 17. 



171. Agabus subfuscatus Sharp. Five specimens taken in the rock 

 pools, on the northeast shore, June 23-24. Two taken by dredg- 

 ing pond, Juh' 17. 



172. Rhantus binotatus Harr. Two specimens were taken in the water 

 of the bay, near some rocks, on the northeast shore, June 21. 



173. Rhnntus bistriatus Bergst. Three specimens found l)y dredging 

 pond, July 17. 



174. Colymbetes sculptilis Harr. Ten specimens taken in rock pools, 

 on the northeast shore, June 21. Three taken in rock pools, on 

 the northeast shore, July 19. 



175. Hydaticus piceus Lee. One sjiecimen found in the rock j)ools, 

 on the northeast shore, June 23. One found in the rock pools, 

 on the northeast shore, July 16. 



176. Hydaticus stagnaUs Fab. One .specimen found sw^imming in rock 

 pool, on the northeast shore, June 22. 



177. Dyiiscus fasciventris Say. Two specimens found in the rock 

 pools, on the northeast shore. June 23. Three taken in the rock 

 pools, on the northeast shore, July 16. 



178. Dytiscus verticalis Say. One sj)ecimen taken in the rock jiools. 

 on the northeast shore, July 16. 



179. Dytiscus subliuibatus Lee. Six specimens foinul crawling in wet 

 sand near the water edge, on the northea.st shore, Ju\v 16. 



II 



