INDEX TO MOI.LUSCA OF NEW YORK 



IO9 



Quadrula trigona, 93". 

 tuberculata, 94*. 

 undulata, 93*. 



Radix ampla, 52*. 



columella, 52*. 

 Retusa, 26 7 . 



gouldi, 26 T . 

 Rissoa, I9\ 



aculeus, ig 2 . 



areolata, 19. 



laevis, 19*. 



latior, i9 6 . 



minuta, ig 1 . 



stimpsoni, 19*. 

 Rissoidae, i8 6 . 

 Rissoinae, ip 1 . 



Sanguinolaria fusca, 68 4 . 



sordida, 68". 

 Saxicava, 6s 6 . 



arctica, 6s 7 . 



distorta, 65 7 . 



pholadis var., 65 T . 

 Saxicavidae, 6s 6 . 

 Scala, io 7 . 



angulata, io 7 . 



humphreysii, io 8 . 



lineata, io 9 . 



multistriata, io 8 . 

 Scalaria angulata, io 7 . 



humphreysii, io 8 . 



lineata, io 9 , n 1 . 



multistriata, io 8 . 

 Scaphander, 2S 9 . 



punctostriatus, 25. 

 Scenea, i8 9 . 



planorbis, i8 9 . 

 Sceneinae, i8 8 . 

 Scissula iris, see Tellina (Scissula) 



iris. 



Scutibranchiata, 24 8 . 

 Segmentina, 62 2 . 



armigera, 62 2 . 

 Semelidae, 67". 

 Serripes, 78. 



gronlandicus, 78'. 

 Sigaretus, 9*. 



perspectivus, 9*. 



Siliqua, 6s 2 . 



costata, 65*. 

 Sinupalliata, 64 3 . 

 Sipho, 5 a . 



islandicus, 5 2 . 



pygmaeus, 5 s . 



stimpsoni, 5 s . 



ventricosus, 5*. 

 Siphonida, 64 2 . 

 Skenea planorbis, 18". 



serpuloides, i8 9 . 

 Solariella, 2S 2 . 



obscura planula, 25 2 . 

 Solariidae, io 6 . 

 Solecurtus bidens, 65 6 . 



caribaeus, 65*. 



gibbus, 65*. 

 Solemya, 79". 



velum, 79. 

 Solemyidae, 79". 

 Solen ensis, 64 9 , 65'. 



siliqua, 6s 1 . 



vagina, 64 9 . 

 Solenidae, 64 s . 

 Soleninae, 65". 

 Somatogyrus, 22 3 . 



integer, 22*. 



isogonus, 22 3 . 



subglobostis, 22 4 . 

 Sphaerium, 70*. 



croceum, 74*- 



fabale, 72*. 



fabalis, 72 5 . 



occidentale, 72 2 . 



partumeium, 73 8 . 



partumium, 73 a . 



rhomboideum, 70. 



rosaceum, 73". 



secure, 74 5 . 



securis, 74 1 . 



simile, 70'. 



similis, 70 8 . 



solidulum, 71". 



stamineum, 72 7 . 



striatinum, 7i 3 . 



sulcatum, 70*. 



transversum, 72", 73 1 . 



truncatum, 73. 



vermontanum, J2 1 . 



