MUSEUM OF COMPARATIVE ZOOLOGY. 



467 



DapkneUa reticulosa, II. 10, 103, 104. 



retifera, II. 10, 105. 



sojia, II. 10, 107, 108. 

 Daronia, II. 386. 

 Defrancia chariessa, II. 122. 



chyta, II. 115. 



circumvoluta, II. 84. 



formosa, II. 119, 120. 



hormophora, II. 106. 



perpauxilla, II. 115. 



streptophora, II. 126. 

 Delphinula, II. 299, 304, 387. 



cancellata, II. 385. 



laxa, II. 277, 386. 



marginata, II. 351. 



nitida, II. 386. 



tuberculata, II. 387. 



tuberculosa, II. 387. 

 Dentaliura, 1. 185 ; II. 3<5J18* 420,* 455. 



aculeatum, II. 423. 



acutissimum, II. 419 



agile, II. 36, 418. 



antillarum, II. 36, 421. 



calamus, II. 36, %.21. 



callipeplum, II. 36, 419, 420. 



callitkrix, II. 36, 427. 



candidum, II. 36, 422- 



capillosum, II. 36, 425. 



carduus, II. 36, 423. 



ceras, II. 36, 425. 



ceratum, II. 36, 424. 



compressum, II. 36, 4%6. 



didymum, II. 428. 



disparile, II. 36, 424. 



ensieulus, II. 36, 428. 



entalis, II. 418. 



filum, II. 36, 419. 



Gouldii, II. 36, 424, 425. 



gracile, II. 419. 



hexagonum, II. 425. 



laqueatum, II. 36, 426. 



leptum, II. 36, 420, 421. 



longistrorsum, II. 419. 



matara, II. 36, 420. 



nebulosum, II. 423. 



obscurum, II. 425. 



octagonum, II. 426. 



ophiodon, II. 36, 427. 



panormitanum, II. 424. 



paucicostatum, II. 426. 



perlongum, II. 36, 419- 



rubescens, II. 420. 



sericatum, II. 36, 423. 



Dentalium Sigsbeanum, II. 428. 



solidum, II. 422. 



taphrium, II. 36, 422, 423. 

 Dentistyla, II. 373, 374- 

 Dermatomya, II. 448* 452. 



mactroides, II. 448.* 

 Diaphana conulus, II. 49. 



gemma, II. 46, 55. 

 Diastoma, II. 22, 258. 

 Dicranobranchia, II. 341.* 

 Dillwynella, II. 31, 360, 362. 



modesta, II. 31, 362. 

 Diloma, II. 362. 



Dimya, I. 172, 173, 206, 210, 227, 228;* 

 II. 291, 433.* 



argentea, 1. 189, 228, 229 * 230* 231 ; * 

 II. 433* 434* 



Deshayesiana, I. 227, 228, 231. 



tenuiplicata, I. 231. 

 DimyodoD, I. 233. 

 Dione, I. 194, 275. 



albida, I. 194. 



hebrcea, I. 194. 



vesica, I. 194. 

 Diplodonta, I. 193, 263. 



pilula, I. 274. 



turgida, I. 193, 263. 



venezuelensis, I. 193, 263. 

 Dipsaccua, II. 173. 

 Dipsas plicatus, II. 375. 

 Discohelix, II. 276. 

 Discopsis, II. 360. 

 Dispotasa, II. 25, 284. 

 Distorsio, II. 220. 



cancellinus, II. 221. 



clathrata, II. 221. 



clatrata, II. 221. 



occidentalis, II. 221. 



reticulata, II. 221. 

 Distorta, II. 220. 



acuta, II. 221. 

 Distortrix, II. 19, 220, 221, 222, 

 v. clathrata, II. 19, 222 



reticulata, II. 19, 221 

 v. reticulata, II. 19, 222. 

 Docoglossa, II. 436. 

 Dolichotoma, II. 9, 80. 

 Doliopsis, II. 232, 233. 

 Dolium, II. 20, 228, 230, 231, 232. 



antillarum, II. 232. 



Bairdii, II. 232. 



Crosseanum, II. 232, 233. 



galea, II. 232. 



