INDEX. 



569 



Helobdella triserialis, 493. 

 Hemiclepsis, 498. 

 carinata, 498-504. 



alimentary canal, color, habits, 

 and reproductive organs of, 



5°3- 

 annuli and somites (if 500-503. 

 diagnosis and general descrip- 

 tion of, 498-500. 

 found attached to frogs and 

 toads and in shells of living 

 mussels, 504. 

 Hemitubifex, 456. 

 Hempel, Adolph, 28, 31, 98, 148,' 

 175, 176, 459, 475. 

 A List of the Protozoa and 

 Rotifera found in the Illinois 

 River and Adjacent Lakes 

 at Havana, 111., 301 388. (See 

 Hart, C. A.) 

 hemprichii, yEolosoma, 443. 

 Henfrey, A., Notes on some Fresh- 

 water Confervoid Algae New 

 to Britain, cited, 274. 

 on arrangement of cells in 

 Eudorina, 274. 

 Hensen, V., 1, 3. 



Methodik der Untersuchung 

 bei der Plankton-Expedi- 

 tion, cited, 2. 

 Ueber die Bestimmung des 

 Planktons oder des im Meere 

 treibenden M a t e r ia Is an 

 Pflanzen und Thieren, cited, 



2, 13- 



herculeus, Lumbricus, 441. 



Herdman, W. A., Thompson, I. C, 

 and Scott, Andrew, On the Plank- 

 ton collected continuously dur- 

 ing two Traverses of the North 

 Atlantic in the Summer of 1897 ; 

 with Descriptions of New Co- 

 pepoda ; and an Appendix on 

 dredging in Puget Sound, cited, 

 226. 



herdmani, Eurytemora, 226. 

 Herpobdella, 532. 

 Herpobdellida?, 532. 

 Herrick, C. L., 28, 38, 30, 45. 



A Final Report on the Crus- 

 tacea of Minnesota, cited 

 132, 135, 182, 225, 266. 



Contribution to the Fauna of 

 the Gulf of Mexico and 

 the South. List of Fresh- 

 water and Marine Crus- 

 tacea of Alabama, with 

 Descriptions of the New 

 Species and Synoptical 

 Keys for Identification, 

 cited, 225, 266. 



A New Cyclops, cited, 97, 

 132. 



descriptions and figures of 

 Epischura lacustris, cited, 

 263. 



descriptions and figures of 

 Epischura fluviatilis cited 

 and discussed, 266, 267. 



description of D i a p t o m us 

 novamexicanus (compiled 

 by Schacht), 149-15 1. 



description of Potomoiche- 

 tor fucosus cited, 233. 



Habits of Fresh-water Crus- 

 tacea, cited, 135. 



Heterogenesis in the C o - 

 pepod Crustacea, cited, 

 267. 



Heterogenetic Development 

 in Diaptomus, cited, 266. 



Micro-Crustacea from New 

 Mexico, cited, 151. 



Microscopic Entomostraca, 

 cited, 132, 146. 



on color of Cyclops prasinus. 



59- 

 on color of Diaptomus inin- 



netonka and D. sanguin- 

 eus, 138. 



