Conchyliologie fluviatile de la province de Nanking

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Testa Sat tenui, Sub-rotundata, posticis paulo producta, Vix tumida, late costulalo- arcuata epidermide insta viridi, supra sucescente, vestita; umbonibuSparvis, erosulis, uncinato-approximati M ligamine tenui, at longo lunula laevi dentibus validis, medio rectos laminis tenuibus, inaequalibus margarita livide violacea, Zonis suscis mixta. Long. 26 ali. 25, crass. 16 millim.

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CYCLADI DEES

Planche V7. ConnicUL ASTR0NOMICA H. Testa tenui, sat solida, aequi laterali, infra rotundata, antice Sub-altenuala, Ostice acutiori parum inflata, lato arcuato-gonata, plicis tenuibus opi dormide viridi nigri cante vestila; umbonibus proeminentibus, introrsis, antiste sub-proni S, ero sulis clunula inconspicua vel rosa diligaui in longo, at tenui, ad pressos dentibus mediocribus, medio crasso, recto ; lamini aequalibus : margarita amethi-stina, intus caeruleo late Onatu. Long. 38 all. 34, crass. Q millim. Habit Canaiax se Chang-hai, verila limite ex ipsim de l'influence declamarest, oh 0lle est mole aut 1. 8. CORBICULA CORDIERIANA. M. Testa magna, Vix crassa, Solida cordala, Sub-aequilaterali circa umbones tumida, mediocribus sulcis, acutiSque plici arcuato-Stri ala epidermide susc0-nigrescente nigrisgonis bi- cincta vestita umbonibus validis, introrsis antice pronis, integris ligam in longo, sub- tenui, adpreSSO lunula incerta, mulli diuela, dentibus sub- crassis, medio recto, laminarum posteri0ri sub-longior margarita marginali lepide viola ea, intus albido suffuso, mediante tractu violaceo. Long. IT ali. 37, crass. 20 millim. Nubit L districi de Kouen-chan. Observat Beli coquille Elle varie uni eide forme, et est parso is u peia prolonget en avant. Elle passe a blane resque pur. Le svj et blanc ont 'sipiderme audatre, mais gardent conStam ment les deuibaudes brutius transverses.

9 CORBICULA BICOLOR H. Testa mediocri Vix craSSa, Sub- compreSSa, transversim Ovala, antice aliori

plicis obliquis, astutis, mediocribus Sulcisque parum latis arcuato-striata epider-mido suecine veStita umbonibus parvis, retortis, integris aulice Sub-pronis; ligamine mediocri, sub-inflato lunula inconSpicua dentibus parvis, medio recto; laminis inaequalibus, compreSSi S margarita imo alba, circa marginem caeruleo Sub-mixta, laminis violaeeis. Long. 28, ait : 24, crass. I millim. Habit L districi de ouen-chan. Observat Varie sans intermediai re a bleu fonc, la vari sitsi leue est molns allongee transversalemeDt.

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10 CORBI ULA LELECIANA H. Testa crasSa, Solida, sub-trigona, in aequilalerali, lumida, postice sub-producta, obtusa, argute et inaequaliter sulcis latis striato-plicata epidermide olivaceanigro-cincta vestita umbonibus antice pronis, proeminentibus, Sub-lruncatis; ligamin brevi, in stato lunula inconspicua dentibus Sub-crassis, medio recto, compresSo laminarum postica Sub-bre Viori, incurvata margarita marginali atr0- violacea interior albo conSpersa. Long. 30 ali. 30, crass. 1 millim

Habit La rivi sire de Nanking. Observas L couleur varie da violet notratre auilanc sale la aere est d'unbel delat de porcelai Le.

11. CORBICULA DIMINUTA.

Testa tenui, sub-solida, Sub-Orbiculari, tumida, irregulariter sulcato-plicata, opiderm id brunnea induta umbonibus anticis, valde ero Si S pro eminentibus; ligamine longo stricto, adpreSSO; dentibus parvi S laminis aequalibus margarita violaeea vel albida. Long. 29 all. T crass. 20 millim. abii La rivi sire de Nanking. 6bse M. La forme ovale tranSVer Sem 'est pas rare Le Violet Ourne a rosedans les eune Sujets.

trali reeta, anteriori late rotundata, plicis parVis sat pressis, talisque sulcis arquato- striata, epidermide e luteo nigrescente VeStita umbonibus crassis, eminentibus, antice pronis; ligamine longo, adpressos lunula inconspicua identibus mediocribus, medio recto laminis longis, aequalibus, posteriori sub- urva; margarita marginali saturate violacea interiori albo-livida. Long. 43 ali. 35, crasso 2 millim. Habit Les canaucle long du Fleuve-Bleu, enlreachen-kiangit an Ling. Observat Varie dii violet aualanc, et a De Orme troS-tranSverSe Uusseu pluSrenssee. 13. CORBICULA UNCINULΑΤΑ. H. Testa craSSa, solida, sub- compreSsa, traΠSVersi elliptica, plicis obliquis argutis, vix regulariter arcuata epidermide e lute0-brunnea vestita umbonibus,

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eminentibus, confluentibus, erosis, acuminato-uncinulatis digamine sub- crasso lunula laevi filo cincta; dentibus mediocribus, laminis sub- aequalibus, Sub- curvati S, antica vix longiore margarita lepide violaceo- aerulea per totum. Long. 29 ali. 25, crass. millim. Habitat Canauides districis de Li-Sang, i-hing