DALL: MOLLUSCA AND BRACHIOPODA. 



477 



INDEX. 



References to the lists of species, p. 212-223 and p. 437-441 are not included. 

 The names of the new species are in italics ; the pages, on which each species, 

 section, genus, etc., is diagnosed, are also in italics. 



Abretia, 245, 249. 

 Acesta, 407. 

 Acharax, 364, 365. 

 Actaeon. 235, 236. 



wetherilli, 238. 

 Actaeonidea, 236. 

 Acteocina, 238. 

 Acteon, 235, 236, 237, 238. 



breviculus, 237, 2.38. 



curtulus, 236, 238. 



estuarinus, 238. 



mazatlaniats, 237, 238. 



panamensis, 236. 



perconicus, 237, 238. 



punctocoelatus, 236. 



tornatilis, 236. 

 Actinobolus, 412. 

 Actita, 329. 

 Acuminia, 246, 249. 

 Acus, 245, 249. 



rushii, 248. 

 Adelomelon, 297, 298. 



benthalis, 298. 



magellanica, 298. 



stearnsii, 298. 

 Admete, 296, 297. 

 Aesopiis oldroydi, 286. 

 Aforia, 257. 



hypomela, 273. 

 Albula, 333. 

 Alectrion, 306, 307, 308. 



ambiguus, 307. 



cntallus, 307. 



exsarcus, 303 



goniopletira, 308. 



miser, 307. 

 Aligena, 412, 413. 



borninna, 413. 



pisiim, 413, 



striata, 412. 

 Alipurpura, 313. 

 Amalthea, 329. 



conica, 330. 



Amaltheus, 329. 

 Amusium, 405. 



malpelonium, 405. 

 Anachis, 3(9. 

 Anadema caelata, 342. 

 Ancistro.s_vrinx cedonulli, 273. 



elegans, 273. 



radiata, 273. 

 Angulus, 421. 

 Anomia, 230. 



dorsata, 444. 



tridentata, 230. 

 Antiplanes, 258. 

 Antistreptus, 314. 



niagellanicus, 314, 315. 

 Area, 397. 

 Area adanisi, 385. 



aurita, 392. 



corpulenta, 398. 



endemica, 399. 



glycymeris, 399. 



heterodonta, 398. 



nucleator, 397. 



nucleus, 367. 



orbiculata, 398. 



pectunculoides, 397, 398. 



pompholyx, 398. 



pteroi-'ssa, 399. 



rostrata, 372. 

 Architectonia, 327. 

 Architectonica, 327, 328. 



radialis, 327. 

 Archtit^iica, 418. 

 Arcopagia. 419. 

 Arene, 344, 345. 

 Argonauta, 224, 225. 226, 227, 228, 229. 



agglutiiians, 227. 



ninericaiia, 226. 2?S. 



argo, 224, 226, 226, 227. 



aurita, 228. 



bibula, 226. 22S. 



boetfgeri. 226, 229. 



bullen, 226, 22S. 



