560 



INDEX. 



DiaiJtonuis, Nortli American spe- 

 cies of — CoJitinued. 

 on descriptions in 

 Schacht's article on, loi. 

 explanation of ])lates of, 



205-207. 

 introduction to Schaciit's 



article on, qy-ioi. 

 key to, based on characters 



of female. 1 14-122. 

 key to, based on characters 



of male, 107- 114. 

 keys of, in Schacht's ar- 

 ticle on, plan and use 

 of, 100, lOI. 

 literature accessible in 

 preparation of Schacht's 

 article on, gg. 

 material at ctmimand for 

 Schacht's article on, qq. 

 noxamexicaiuis, qg, ill, 116,149- 

 151. 

 distribiition of, 183. 

 mmiber of recognized North 



American species of, g7. 

 on distinguisln'ng characters of 



sex in, 100. 

 on movements of, 235. 

 on specific distinctions of males 



in, 100. 

 oregonensis, log, i ii), 124, 151 -154. 

 170, 171, 220, 265. 

 distrilnitiou of, 154, 183. 

 ( )sphranticuni,Linnio(alanus, and 

 Episcluira, disc u ssion 

 of structural similarities 

 and differences indica- 

 tive of relationships of 

 the genera, 226. 

 general bibliography of 

 genera of, 185-204; ad- 

 ditions to, 268. 

 svno|)sis I if the relation- 

 ships (if tlie genera, 102 

 105. 



Diaptomus — Continued. 



])allidus, 108, 121, 124, 137, 144- 

 146, 265. 

 distribution of, 183. 

 females of, 100. ., 



var. sicilis, 122. 

 piscina?, g8, log, 116, 118,125-127, 

 181. 

 distribution of, 182. 

 fifth pair of legs of male of, 

 contrasted with those of 

 other species, 125, 127. 

 reighardi, gS, log, I2r, i6g 171. 



distribution of, 184. 

 roubaui, 166. 

 salinus, g8. 



sanguineus, g7, 112, 117,129,133 

 138, 160, 166, 234. 

 and D. stagnalis compared, 136. 

 color of, 138. 

 distribution of, 183. 

 peculiarity in structure of, 134. 

 synonymy of, 135. 

 variation in, 136, 137. 

 serricornis, 162. 



shoshone, 1 10, iUj, 127. 141 14^ 

 164. 

 distribution of, 143, 183. 

 sicilis, 97, 100, iii, 121, 122 124, 

 145, 167, 168, 169, 182,229, 264. 

 compared with D. siciloides,i55. 

 details of structure distinguish- 

 ing from 1). ashlandi and I). 

 pallidus, 124. 

 distribution of, 124, 182. 

 females of, 100. 

 variation instruclun.- of, 124. 

 \ar. im])erfectus, 124, 158,^67, 

 i6(,. 

 siciloides, g8, ico. 114. 121, 124, 

 137, 146. 154 156, 157, 165, 

 166, 181. 182, 220, lO,--,. 

 compared with D. camli, I), 

 gracilis, and I), sicilis, 155, 

 182. 



