174 Pelecypoda. — Scaphopoda. 



mis , tubo brevi , vix libero , margine simplici liaud reflexo ; valva libera irregu- 

 laris, subelliptica, paullo convexa, striis incrementi rugosa. — Long. valv. 12, 

 camerae 15 mm. — In coloniis Balanorum. 



Habit. : Napoli, Posilipo (Scacchi, Philippi) ; Sicilia : Siracusa (Philippi), 

 Catauia (Aradas). 



2. Class. Scaphopoda Bronn 



(Cirrhobranchiata Blv., Solenoconchia Lac.-Duth.). 



1. Fam. DENTALIACEA Roemer. Radula lata, brevis : 1 — 1, 1, 1 — 1, 

 dentibus marginalibus laraellosis ; pes plus minusve longus, interdum vermiformis : 

 testa tubulosa, non spiralis, extremitate antica et postica aperta, posticam versus 

 atteuuata; orilicium posterius aut simplex aut undulatum, aut crenulatum aut 

 flssum; operculum nullum. 



1. Subfam. Antalina Stol. {ScapJiopoda Gr. 0. Sars). Pes brevis, antice 

 sulcatus, simplex aut lobulis duobus ; testa postice margine integro aut inciso aut 

 tubulo accessorio interno munita. 



Dentalium L. {Antalis G. 0. Sars). Tcsta clongata attenuata plus nihmstr 

 (lycuafa; orificiam posticmn marginc integro aut in latere ventraJi rimatnm, tnbulo 

 accessorio instructum. 



1. D. agile Sars {JD. incertnm Phil. , D. fusticttlus Brugn. , B. lacteum 

 0. G. CosTA, nec Desh.). Testa valde elongata, angusta, apicem versus sensim 

 paullo attenuata, perparum arcuata, fere recta, liaud multum solida, alba, paullum 

 nitida, saepius laevis, rarius apicem versus leviter striolata, rima apicali sat pro- 

 funda. — Long. 57 mm. 



Distrib. : Mare arcticum. — Fossilis tertiaria, in stratis postpliocenicis. 



H a b i t. : Sinus Marsiliensis, Marsilli, Peyssonel, Blanquiere ; Nizza (Marion) : 

 inter Siciliam et Usticam (Moxterosato) , „Adventure Bank" (Jeffreys); mare 

 Aegeum (Nares, Jeffreys). 



m 2. D. panormitanum Chenu {D. Lessoni Sow., ex opin. Monteros.). 

 Differt a D. dentali statura raulto majore, carinis distinctis, epidermide prismatica, 

 appendice apicali raulto breviore. — Long. ad 85 ram (Monterosato). 



Habit. : Marseille: Riou, le Planier, Cassidagne, cap Sicie (Marion); piom. 

 S. Vito, Palermo (Monterosato), Sciacca (Del Prete). 



3. D. dentale L. {B. Lcssoni Sow., ex opin. Weinkff., ]). striatum Brus., 

 IJ. Linnacannm Loc, J). affinc Biondi). Testa teres, subarcuata, costulis longi- 

 tudinalibus 7 — 12, interdum minoribus interpositis , basin versus evanescentibus 

 vario modo sculpta, plerumque versus aperturam costulis 18 — 20; rosea modo 

 ad apicem modo ad basin obscurior. — Long. ad 75 mm. — ■ var. cornea Monter. 



Distrib. : Mare Lusitanicum. 



Habit. : Litora Hispaniae : Mataro (Hidalgo); Malion (Hidalgo); Alger 

 (Weinkauff) ; Roussillon (Locard), Cette (Granger), Palavas (Dollfus), Aigues- 

 Mortes (Dubreuil), roches des Moles, Gard (Clement), Fos, les Martigues (Lo- 

 card), la Joliette, chateau dlf, les Goudes, Carry, Garlaban, Ratonneau, Montredon 

 (Marion) ; Nizza (Risso, Viiirany) ; Corsica frequ. (Payraudeau, RSquien) ; litora 

 pedemontana (Jepfreys) ; Spezia (Tapparone-Canefri) ; Livorno, Castiglioncello, 

 Giglio (Appelius) ; Civitavecchia (Monterosato) ; Napoli (Scacchi) ; Sicilia(PHiLippi, 

 Aradas et Benoit) ; Malta (Mc Andrew) ; litora Tunetana (Monterosato) ; Adria: 



