\ 



Trocliidae. ' 255 



•centrice sulcata; umbilicus infundibuliformis, apertura 8ubrlioinl)ea, columella olili- 

 qua, subtruncata. — Alt. Ki, diam. 14 niiii. 



Habit.: Litora Hispaniae: Oibraltar (McAndrew), 8 org". aut in Asteriis, 

 Mataro (Hidalgo) ; ins. balear. : Jlalion (Mc Andeew , Hidalgo); litora Galliae 

 (Petit) , Roussillon : Port-Yendres , Paulilles (Bucqioy , Dtzbg. , Dfs.) , Cette 

 (Grangeb), Grau du Eoi (Cl]5mext), a Cette usque ad Aigues-Mortes (Dl'bbeuil), 

 Pos (Locard), Marseille (Axcey), la Corbiere, Garlaban, Montredon, Ratonneau 

 (Makiox), 8t. Raphael (Doublier), Toulon, St. Tropez (Locard); Nizza (Risso, 

 YftRANY), Genova (YfiRANY); Corsica (Payraudeau, .RftQUiEN) ; Spezia (Tapparone- 

 Canefri); Napoli (Scacchi); Sicilia (Philippi), Palermo, frequ. , rarius in aliis 

 locis (Aradas et Benoit), Palermo, alla Barra (De Gregorio); Adria: Trieste 

 (Grube), Lesina, Curzola (Heller), Pirano, Rovigno, Cherso (Stossich), Scoglio 

 llalta, 72 m (WuniER), Zara (Sandki, Brusina); Morea (Deshayes); mare Aegeuin 

 (FoRBEs); Creta (^Spratt, Jeffreys). 



Circulus Jeffe. Testa orbicularis, quasi nummiformitcr depressa, lerifer per- 

 lacea; apertura quadrangnla , peristomate non continuo; imhilicus latissime apertxis; 

 €i)erciduni jHnUisjiirHin. 



1. C. striatus Mtes. (Valvafa sfriata Phil., Belphimda T)umim/i Ri^^iju., 

 Trochus Duminyi Jeffr., Skenea sfriata Wkff., Ctjclostrema striafum Fischer antea : 

 [ex opinione jAIonterosati Solarium Fhdippii Cante., Ci/closfrema [DclpliimdaJ cosfata 

 Dan. et Sandri, Beus. , var. Adeorbis tricarinatus S. Wood, Adeorhis costafus 

 Wkff.]). Testa minima, subdiscoidea, supra convexiuscula, subtus umbilicata ; an- 

 fractus 4 rotundati sutura satis profunda disjuncti, spiraliter sulcato-striati; aper- 

 tura valde obliqua, orbicularis, peristoma simplex. — Diam. vix 2 mm. 

 Distrib. : Atlanticum. — Fossilis in stratis tertiariis. 

 Habit. : Alger (Weinkauff); litora Galliae, Roussillon: Port-Yendres, Pau- 

 lilles (Bucquoy, Dtzbg., Dfs.), litora Provinciae (Maetin, Jeffreys); Nizza (Lo- 

 card); Corsica (Requien); Palermo (Monterosato) ; Adria: Puntamica (Sandri, 

 Brusina). 



? m 2. C. exilissimus ^Itrs. {BelpMnula e.vilissima Phil.). .Testa niiniiua. 

 orbiculata, valde depressa, supra fere plana, anfractibus 4 teretibus, ultimo liueis 

 trausversis elevatis 5 cincto, umbilico uiaximo" (Philippi). — An eadem species 

 ac praecedensV — An Cyclostremma, aut SkeneaV 



Habit. : Palernio, Trapani (Monterosato), penins. Magnisi (Philippi); Adria: 

 litora Dahnatina (Brusina). 



?7n 3. C. formosissimus Brugn. {C. Jeffreysi Mtrs. nom.). „Testa exilissima, 



orbiculata, depressa, superne subplanata, valde umbilicata, alba, nitida ; anfracti- 



bus 3 teretibus, ultimo longitudinaliter costato, transversim cingulato; apertura 



orbiculari; peristomate continuo, distincto" (Brugnone). — Pari modo dubia species. 



Habit. : Trapani (Brugnone, Monterosato), Palermo (Monterosato). 



Margarita Leach {Eumargarita Fischer). Yehnn frontale fmbriatum, mulfi- 

 lobum; tenfacula cUiafa; pcdunculi oculares breves; linea epipodialis cirris 5 — 7 ad 

 hasin tuberculo ocellifero munitis; pes ante truncatus auf semicircidaris ; radida deiifi- 

 bus centralibus 4 — 6 (4 — 6-\-l-[-4 — 6), laferaU rudimentari, apice non dejiexo. 

 marginalihus numerosis, margine crenulato; testa umbiliccda, tenuis, unicolor, sub- 

 globosa aut conoidea; stratum superjiciale perfenuc aut caducum; hasin plerumquc 

 plana; aperfura perisfomafe interrupto, labro acufo, margine columcllari arcuafo; 

 operculum nndfispirum. 



1. M. Ottoi Jeffr. [Trochus Oftoi Phil., ? Tr. Vaillanti Fischkr). Testa 

 conoidea, albida, liris spiralibus :-*. distantibus, pulcherrime tuberculatis cingulata, 

 in anfractibus spirae liris incrementi tuliercnla jungentibus sculpta , in ultimo 

 laevis; anfractus circ. 6 mediocriter convexi, ultinius bene rotundatus, circa um- 



