292 Zoological Society. 
transversim crebriliratis, longitudinaliter suboblique unduloso-va- 
ricosis, varicibus obtusis ; custaneo-fuscescente, columella et aper~ 
ture fe subrosaceis ; canali brevi. 
Hab. —--? 
A small chestnut-brown shell, quite distinct from any hitherto 
described. 
Murex EuRYPTERON. Mur. testd ovato-oblongd, basim versus 
contractd, spird breviusculd, acuminato-turritd, suturis subexca- 
vatis ; anfractibus superné depressis, transversim obscure obtuso- 
liratis et punctato-striatis, tuberculo superficiario inter varices ; 
trivaricosd, varicibus tenuibus, erecto-alatis, ultimo latissimé ex- 
panso, superné falcato-recurvo ; aperturd parvd, ovatd; canali 
breviusculo. ) 
Hab. Japan? 
For this new and remarkable shell I am indebted to the kindness 
of the Rev. W. R. Crotch, whose manuscript name eurypteron, from 
evpus, widely extended, and xrepdr, wing, I feel great pleasure in 
adopting, as being peculiarly expressive of its curious alate growth. 
It approaches nearest to the Murev falcatus, but in that species there 
are five varices on a whorl, whilst in this there are but three, and the 
winged expansions of the Murex falcatus are folded over at the su- 
perior margin. ‘The specimen above described, and which is, I be- 
lieve, unique, was received from Holland, and is supposed to have 
come from Japan. 
The following paper, entitled “‘ Déscription de quelques nouvelles 
Nérites Fluviatiles, du cabinet de H. Cuming, Esq.,” md C. A. 
Récluz, was then read :— 3 
I. NERITH SUBHEMISPHARICA. 
1. Nerita RossmassueR1aAna. Ner. testd subhemisphericd, con- 
vexd, luteo-fulvd, nigro-irregulariter reticulatd ; anfractu unico 
levissime perlongum striato; peritremate ovato-rotundato, bast 
obtuse anguloso; aperturd croced ; columella planissimd, declivi, 
margine acuto, in medio subarcuato et obsoletissimé 3—4-denticu- 
lato. 
Hab. : 
Alt. 10, lat. 18, convex. 10 mill. 
2. Nzrira viotacga, Gmelin; Ner. crepidularia, Lamk. 
Var. B. Testa ellipticd, luteo-pallidd, violaceo-nigricante reticulatd ; 
aperturd seititaiae peritremate continuo. 
Hab. 
Il. SERRATzA. 
A. Globose. 
3. Nerrra soprina. Ner. testd globoso-ovatd, lutescente, lineis 
nigris distantibus latiusculis undatis vel angulato-fleruosis fulgu- 
rantibusque pietd ; anfractibus tribus, ad suturam nigro-margi- 
natis ; spird semisphericd ; columelld conveviusculd, superne plus 
