618 



PROCEEDINGS OF THE ACADEMY OF 



[Dec, 



Benthosema mi'illeri 570 



Berberis repens 53, 92 



Berula angustifolia 53, 81 



Betula occidentalis 27, 53, 97 



Bifidaria ashmuni 197 



contracta 525, 527, 528 



c. climeana 525, 527-532 



corticaria 526 



pellucida hordeacella 197 



pentodon 527, 531, 532 



p. tappaniana 529, 530 



pilsbryana 197 



quadridentata 197 



Bigelovia 26, 77 



douglasii 35, 53, 91 



pulcheHa 53,92 



Bisulcus 545 



Bittium nugatorium 357 



Blepharopsis 328 



mendica 328 



Boleichthys 4 



fusiformis 13 



Boleosoma 4 



nigrum olmstedi 13 



Brachypodella alba striata 575 



chemnitziana 579 



robertsi 574 



seminuda 579 



Brevoortia tyrannus 6, 203, 207 



t. aurea 207 



t. dorsalis 207 



t. patronus 207 



Brizopyrum spicatum 54, 83 



Bromeliaceaj 577 



Bromus breviaristatus 54, 94 



Brycon atricaudatus 505 



moorei 505 



scapularis 502, 506 



Bryum 39 



sp. 54,92 



Buccinida; 348 



Bufo alvarius 223 



boreas 223 



cognatus 223 



lentiginosus americanus 223 



I. woodhousei 223 



punctatus 223 



Bulimulida? 579 



Bulla (Volyula) oxytata 339 



Bullina chipolana 339 



(Abderospira) chipolana 339 



Caddo agilis 456 



Cadulus 338 



annulatus 168 



dentalinus 168 



depressicol lis 168 



exiguus 169 



simrothi 168,169 



sp 168 



Calculus 395,397 



Calidomantis 323 



affinis 323 



Calidomantis kilimandjarica 323 



pharaonica 323 



Callichthyidse . 436 



Callilepis femoralis . 441 



imbecilla .... 441 



Callinectes sapidus 3 



Callisaurus ventralis 225 



Callocardia 371 



(Agriopoma) gatunensis 370 



gatunensis multifilosa 370 



Calochortus nuttalli 26, 30, 54, 91 



Calyptrseidse 360 



Camassia 30 



esculenta 54 



Cambridgea antipodiana 412 



Cancellaria barret t i 346 



dariena... .... 345 



d. trachyostraca 345 



decaptyx 346 



reticulata.. .... 345 



Cancellariidse 345 



Caponia 394,397 



Capulidae 360 



Capulus gatunensis 360 



Caranx hippos 16 



Carcharias littoralis 16 



megalodon 336 



Cardamine cordifolia 54 



Cardiidae 366 



Cardium apicinum 367 



belcheri 367 



(Laevicardium) dalli 367 



(Trachycardium) dominica- 



num 367 



(Trachycardium) dominicense 367 



(Fragum) gatunense 367, 36S 



(Trachycardium) gatunense... 367 



lingualeonis 367 



? newberryanum 368 



(Protocardia) newberryanum.. 368 



(Laevicardium) serratum 367 



sp 366 



(Trachycardium) stiriatum, 366, 



367 



Carex fistira 54 



hookeriana 54, 74, 79 



jamesii 54, 87 



muricata 54 



utriculata 54, 74, 79, S7 



Carum carui 54 



gairdneri 26, 31, 55, 98 



Carvilia 326 



agrionina 326 



Carychium exile 527, 52S 



Cassidaria laevigata 356 



Castianeira pinnata 442 



Castilleia miniata 55, 82 



minor 94 



parviflora 27, 55, 94 



Catostomus commersonnii 4, 9 



nigricans 4 



