227

2. RIMULA (hMiN(; i I , A. Adams. R. testdpared, ozjatd, o p c ~ i , costellis longztudinaEibus, radzantzbus, liiaeisque f ransty ersis, CTIIS-

sis, coiwentrzcis, canrellatci ; cnncelli transversi, eloiagati ; costis nodulosis, subrequalibus, prominentibus, dzstnntihus, anteriori- bits clnabus antzce divrr.yeiiti62cs, interstitiis costellis duubus zn- sfruc fis, perforatione eloiiyatii: siib quadrat&.

I I d . Eastern Seas. Mus. Cumiiig.

3 . RIMULA CARINATA, A. Adams. Ic. fesiti' p a r d , oiwli, cnsfel- 17s szniplm bus, perrrml f is, con f e~ t z s , longitti Jciia Zibus, radian f t - bus, ornutti; interstitiis cancrllatis; canrellL puncttfoimes; CQS-

tellis cluabus anteriorillus, anficr roiivergeru%h, et a p d n p r - turre wcarginerrt jzcnc t i s ; interstitiis, s u p a perforattonnn, con- vpxis, supra verticeni extenden fibus, quasi caritid ; perforutaonr oval;, n n p s f i i , antice anyustat$.

Hub. Cagayan, province of Misamis, island of hlindanao, on dead shells, 25 fathoms, sandy mud (H. C.). Mus. Cuming.

3 . RIMULA PEOPINQUA, A. Adams. R. t1?~2(c" parvd, elo?tyclto- ooali ; costellis promin~riti6us, asperis, lo~igitudiiznlzbus, ra- tlzniitibus, stcbdistaiitibus ; interstitips tlalde cancellnfis ; can- cell1 transversi, sicbquadrati ; costellis duabus rtn ferioribics, antice convergentibus, ad apertwa? marginem jurictis; perfo- rufione a,iyustato-ovali, antzce acwmintctii.

I I d . Catapan, Philippines. Mus. Cuming.

9. A hfONOGRA1'H O F PUNCTURELLA, A GENUS OF GASTEROPODOIIS

B Y J ~ R T H U R ADAMS, R.N., F.L.S. ETC. MOLLUSCA, BELONGING TO THE FAMILY FISSURELLIDIE.

Genus PUNCTURELLA, Lowe. Head proboscidiform, tentacles subulate, with the eyes on swell-

ings at their outer base ; sides with a range of cirrhi, intcrruptcd bc- hind on each side ; mantle-margin simple ; branchial plumes two ; anal siphon promincut, forming a truncated membranous canal pro- jecting from the subapical perforation.

Shell conical, with an elevated, slightly recurved, obliquely spiral entire vertex, turned towards the posterior end ; aperture expanded, oval ; surface with radiating ribs ; margin entire ; a linear perfora- tion in the uppcr part of the shell, between the vertex and front margin, in the line of an elevated rib. Interior with a linear groove, vaulted over with a shelly plate corresponding to the perforation ; muscular impression crescentic, interrupted in front.

Ccrnoria, Leach, MSS.-S+ho, Brown.-Rimula, L o v h ; Godd ; Couthouy.-? Diadora, Gray.

1 . PUNCTURELLA NOACIIINA, Liim=eUs. Patrlla noachina, Linn. Mantissa, p. 551 ; Chemn. Conch. Cab.

vol. xi. p. ISG. pl. 197. f. 1997, 1D25.-Putella~ssurella, Miil1er.-

225

Ptssairclla Noachiiiu, Schuni.--P2inctureMa Noachina, Lowe.-Ce- rnoria Flewiiiigti, Leach, hfSS.-Cemorin Noachina, Lowe.-Rimnla IJ?einixgii, Rfncgill.-~itnuZa Noacliina, Conthouy.-Qho Xoachina, Brown.

IIa6. British Islands. Mus. Cuming.

2 . PUNCTURELLA CUCULLATA, Gould. Itirnwlu c m d l a t n , Gould, Expedition, Shells, p. 1 1. € l a b . Puget Sound.

5. PUNCTURELLA GALEATA, Gould. Itimzrla galeata, Gould, Eupedition, Shells, p. 14. Iinb. Puget Sound. hhs. Cuming.

4. PUNCTURELLA COGNATA, Gould. ltirnu7u cognafa, Gould, Expedition, Shells, p. 14. rrd. Orange IIarliour.

3 . P u N c r u i t I : I . L i C O N I L ~ , D'Orb. Voy. Am. Bier.

6. PUNCTURCLI,A r tSTIGIATA, A. Adams. P . test4 nlbidli' ele- to-conicd, nitidti, arrficr acuininnto itiroluto, costellis longitn- nalibirs crpalibtss qui&statiti6us, intersti t i is p lanis linris

incrementi concentricas ; $ssurd lanceolatd; uper turd o ~ a l z , niargine crenzclato, fornice c o d , costd valde arcieatd, transver- sali, szmplici.

Hab. Eastern Seas. hfus. Cuming.

7. PUNCTURELLA PRINCEPS, Mighels and Adams. Cemorza pri?zerps, i\Iighcls and Adnms, Bost. Journ. Nat. Hist.

pol. iv. p. 43.

10. ON SOME GENERA OF SHELLS, ESTABLISHED IN 1807 BY THE

I n several program, hitherto not a t all taken notice of by any Conchologist, the renowned Botanist Link of Berlin, then Professor of Natural I-Iistory, Chemistry and Botany at Rostock, in the course of the years 1806 to 1805, has published an account of the Collections of the Rostock University. These little treatises seem to be very rare, nor do I remember ever to have found them mentioned, before my ' Index Generum Malacozooruni' recorded them. Yet they may claim priority in many instances, which I hope will be re- deemed by simply noticing their contents. The German titles of these octavo pamphlets are as follows :-

Beschreibung der Naturalien-Sammlung cler Uni>-ersitiit zu Ros- tock, von Dr. €1. F. Link. Rostock. Gedruekt bei Adlers Erben.

LATE I-I. F. LINK. BY DR. HERRMANNSEN, OF KIEL.