■j^^2 Zoological Society. 



16 Helicina DOMiNiCENSis, Pfr. H. testd globoso-conicd so- 



^YulucTcLrici confertim striata, parum rf^f'^'^^^; 

 velfulvo-zomtd; spirdconicd, acuta; f^nfracHbns G.plamusculs, 

 suturd profunddjunctis, ultimo convewiore, vu descendente cou- 

 ZlmCLiJ, basi denticulatd callum ermtte.Uc «^.- 

 circumscriptum; aperturd parhn obhqud, ''^'''f';J''''J^ZZ 

 acuto, subrecto. Operculum tenue, testaceum, carneum, margme 

 columellari elevate. 



Diam. maj. 6i, min. 5f, alt. 5 mill. 



Hub. St. Domingo (Salle). 



Descriptions of new Species of Trochid^. 

 By Arthur Adams, R.N., F.L.S. etc. 



Genus Trochtjs, Unn.—Pyramidea, sp. Swains. 

 1 Trochtjs CuMiNGii, A.Adams. T. testd turrito-conicdvio- 

 ' 7aZ macu^^s viridibis pulcherrimh pictd ; anfractibusplams, 

 lauUsZanorum moniliformibus ornatis, inferne nodoso-ph- 

 lltanfractu ultimo aiuUio, peripherid rc^fj^nrj.^^^^^^^^^ 

 nosd basi concavd, cinguUs granulosis, "^f «'i^^f' ^ ;/,7,. 

 fundb excavato umbilicus, simulante ; coumeUa ^P^o iiZs 

 tuosd, basi dente terminatd; aperturd tetragond ; labro intus 



M.^'sibonga, island of Zebu, under stones at low water {H. C). 

 Mus. Cuming. 



9 Trochtjs fastigiattjs, A. Adams. T. testd conicd imper- 



^' foratd, ruhrd, maculis albis longitudinalibusvanegatd; an- 

 fractibus planis, in medio concavis, superne cmgulis tribus 

 noduloZn ornatis, ad suturam nodis subsprnosrs vnstructis, 

 baTpZd, concentric^ liratd ; liris crenulat^s ; columeldpos- 

 ttclcanaliculatd, a^iticc truncatd ; labro m medio angulato. 



Hab. ? 



Genus Pyramis, Chemn. 



Tectus, Monti— Pyramidea, sp. Swains. 



1 Pyramis architectonicus, A. Adams. P. testd conicd, 

 ' imperforatd, albidd ; anfractibus planis, subimbncat^is, longi- 



tudinaliter costatis, costis crassis, rotundts subnodoszs basi 

 pland, firis concentricis exaratd; columelld brem, tortuosa, 

 antice truncatd; labro margine fimbnato. 

 Hab. Signet Bay, North Australia {Bring). 



2 Pyramis letjcogaster, A. Adams. P. testd conicd, im- 

 ' nerforatd ; spird acutd, in medio tumidd, albd, viruh vanegatd ; 



Infractibus planulatis, lonyitudinaliter cojrugatis transversnu 

 cLulis nodulosis ornatis, ad suturam nodis Misfimbratis 

 basi pland, albd, concentrice sulcatd ; columella bren, valde tot- 

 tuosd ; labro antice intus Itrato. 

 Hab. ? 



