138 



some shells supposed to be new, he had ascertained that 

 the following had been previously described, viz. : 



Helix penicillata is said to be the young H. gihus, Fer. 

 Helicina glabra is H. nit.ida, Pfeiffer. 

 Pupa carinata is the young of P. procera, Gould. 

 Siphonostoma lit.uus, is Cylindrella elegans, Pfeif. 

 Cyclostoma clathratum is C. rugulosum, Pfeif. 

 Cyclostoma Mahogani is C. Sagra, D'Orbigny, and C. pictum, 

 Pfeif. 



Cyclostoma bicolor is C. auricula turn, D'Orb. 



The following do not appear to have been elsewhere 

 described, viz : 



Siphonostoma porrectum. Testa gracillima, fusiformi, glabra, 

 pellucida, maculis lacteis subquadratis obscure tessellata ; anfracti- 

 bus ad 24, ultimo disjuncto et valde porrecto ; apertura campanulata, 

 subquadrata, peristomate albo, reflexo. Long. 3-5 ; lat. 7-100 poll. 

 Habitat, Cuba. 



Cyclostoma catenatum. Testa conico-turrita, fulvo-virides- 

 cente ; anfractibus quinque convexis, striis elevatis volventibus, 

 fusco articulatis ; apertura sub-orbiculari, anfractu penultimo dis- 

 juncto ; peristomate reflexo, postice dentato ; operculo albo, calca- 

 reo. Long. 1-2 ; lat. 2-5 poll. Habitat, Cuba. 



Conus castrensis. C. testa laevi, conica, antice admodum con- 

 stricta ; spira planulata, apice mamillata,flammulis radiantibus cas- 

 taneis notata ; anfractibus 10, supra concavis, ultimo colore albo, 

 lineis et maculis angulatis castaneis reticulata ; basi castanea. 

 Long. 3 : lat. 1 1-2 poll. Habitat, ( ?) 



Dr. Gould also presented the conclusion of his " Mono- 

 graph of the Pupadse of the United States," which treated 

 of the following species, viz. : P. ovat't, modesta, Goi/ldii, 

 penlodon, Tappaniaua, rvpicola and fallax ; to which he 

 added descriptions of two foreign species, viz: 



Pupa servilis. Testa parva, ovato-oblongata, glabra, rufescente, 

 umbilicata ; anfractibus quinque convexis ; apertura semi-elliptica, 

 dentibus quinque armata, quorum unus contortus postice affixus, 

 unus ad basin, duo ad labium; labro reflexo. Long. 1-10; lat. 



