INDEX TO MOLLUSCA OF NEW YORK 



107 



Paludina lustrica, 21 s . 



porata, 2O 5 . 



rufa, 24*. 

 Paludinidae, 23*. 

 Pandora, 66*. 



trilineata, 66 s . 

 Patelloida alveus, 25". 



testudinalis, 25. 

 Patula alternata, 33*. 



perspectiva, 34. 



solitaria, 34*. 



striatella, 33, 34*- 

 Pec ten, 96 8 ~97 3 . 



concentricus, Q6 8 . 



gibbus irradians, 96*. 



irradians, Q6 9 . 



islandicus, 97*. 



magellanicus, 97*. 



tenuicostatus, 97*. 



turgidus, 96. 

 Pectinibranchiata, 4\ 

 Pectinidae, 96 8 ~97 3 . 

 Pelecypoda, 64*. 

 Petricola, 69*. 



dactylus, 69*. 



pholadiformis, 69*. 

 Petricolidae, 69 1 . 

 Phacoides, ;8 8 . 



filosus, 78 8 . 

 Pharellinae, 65*. 

 Philine, 25 8 . 



quadrata, 25 8 . 



quadratus, 25'. 

 Philinidae, 25*. 

 Philomycus, 47 T . 



carolinensis, 47 T , 48 3 . 



dorsalis, 48 2 . 

 Pholadidae, 64'. 

 Pholadinae, 64*. 

 Pholas, 64 s . 



costata, 64. 



crispata, 64*. 



truncata, 64". 

 Physa, 56". 



ancillaria, 57 1 . 



aurea, 57 7 . 



cylindrica, 57*. 



elliptica, 56". 



elongata, 53 T , 58'. 



glabra, 58'. 



Physa gyrina, 56 8 . 



heterostropha, 57', 58 1 



hildrethiana, 56*. 



hypnorum, s8 6 . 



Integra, 58*. 



niagarensis, 58*. 



obesa, 57". 



planorbula, 59"* 



plicata, 57 6 . 

 Pisidium, 74'. 



abditum, 74, 74 8 . 



aequilaterale, 75', 76 1 . 



affine, jf. 



compressum, 76*. 



ferrugineum, 76'. 



medianum, 77*. 



notatum, 74". 



noveboracense, 75 T . 



novi-eboracense, 75*. 



pauperculum, 77*. 



plenum, 74 T . 



punctatum, 77*. 



resartum, 74 7 . 



roperi, 77*. 



rotundatum, 77'. 



rubrum, 74 7 . 



sargenti, 77 2 . 



scutellatum, 77. 



splendidulum, 77 6 . 



streatori, 77 3 . 



strengii, 77 a . 



ultramoritanum, 77*. 



variabile, 76 8 . 



ventricosum, 75 T . 



virginicum, 75*. 



walkeri, 77*. 

 Plagiola, 85 a . 



elegans, 85*. 

 Planorbinae, 58*. 

 Planorbis, 58'. 



albus, 6i 5 . 



armigerus, 62*. 



bicarinatus, 6o a . 



campanulatus, 58, 59*. 



corpulentus, 59'. 



deflectus, 6o 9 , 6i\ 



dilatatus, 6i 3 . 



elevatus, 6i T . 



exacutus, 6o 9 . 



hirsutus, 6i 5 . 



