— 36 — 

 Piipa pleiirophora ShuUl. 



Testa mlnuta, liinato-perforata , bieviter ovata, teniiis, vix 

 striata, iamellis tcnuissirnis rtmotis, inteiduai evanldis, exiinlc cos- 

 tulata, rufescenti-castanea, subpeüuciäa, vix nitcn.s ; spira rotundala, 

 obtusa; anfr. 5, valde convexi et subinOati, uliiinus basi roJundatusj 

 sulura ^rofunda^ apertura rotundato-siibauriformis, 7-pIicata : plica 

 anscnlarl valida. pariehiü valde elevata subimniersa, coluinellaribus 

 '4, superiore valida, inferiore parva, pahdalibus 3 immersis, media 

 minore 5 perist. expansuni, calloso-lubiatuni, albidum, mai'gine dex- 

 tro superne angulaio-sinuoso infra sinum sublubercuiato. 



Diam. IV3, Alt. circa 2 miil. : Apert. % mili. 

 Uab. In insulis IViarquesas et Taiie, consoriio sequentis et Hydro- 



coena miiiutissimi Sowb, copiose (^Verreaux). 

 Obs. Forma et sculptura Pupae Ijratai (jould in Proceed. Host. Soc. I. 

 p. 139 (1843} et Bost. Journ. iV, t. 16, f. It», ex Ins. Sand- 

 wich, affinis^ sed species (aouldiana plicis valde allenis et testa 

 sinistrorsa omnino destincta est. 



Pupa Pecliculiis Shultl. 



Tesia minuta, ovato-obiong'a, tenuis, vix striafula, pellucida, 

 hyalina5 spira obtusa ; anfr. 0, convexi, uhimus basi vix compres- 

 SUS5 sulura prpfiinda; apertura rotundato-subauriformis, 5-pIicata ; 

 plica angulari valida flexuosa immersa et antiee subemarglnata, co- 

 lumellari 1 satis valida, palatalibus 3 immersis, media validiere 5 

 perist. tenue, brcviter expansum, margine dextro superne rotundato- 

 subflexuoso medio cum columeüari subparallelo. 



Diam. IV45 Alt. 2Y2 "li"- *• Apert. vix 1 mill. longa. 

 - Uab. Cum praeccdentc (Verreaux). 

 06s. Speeimina ultra 12 comparavi. Species P. armiferaj et praj- 

 sertim P, riipicola^ Say affinis, a priore statura multo minore 

 et plica columellari lamelliformi nee crassa subtriangulari, ab 

 altera, quacum dentibus convenit, testa pro magnitudine cras- 

 siore »c breviore, ac spira non attenuata. Cum Pupa corticaria 

 Say nullomodo confundenda. 



Cyliiidrella filicosta Shutll. 



Testa truncata, rim:i(a, fislulata (axi spira;, nempe, penitus 

 tubulata, ad basin rimatim clausa, ad apicem truncatum aperta), 

 turrito-cj'lindrica, medi(» paululum ven!ro)^ior, tonuis, remote sed 

 re^rulariter costulata : costulis rectis filaribus pallidis in anfr. ulti- 

 mo antiee confluentibus, interstitiis minutissime transverse ruguloso- 

 striatis, sericeo-nitcns, rufescenti- Cornea; anfr. 12 — 13, convexi, 

 sensini accrescentes, ultimus antiee brcviter solutus et horizontali- 



