376 Gastropoda. — Ctenobranchia. 



magna, tubiformis, ovato-conica, ventricoso-inflata, solida, alba, ferrugineo tincta, 

 rnbro-fusco flammulata et tessellata, varicibus 11 — 12 lamelliformibus nodiferis: 

 spira conico-acuminata; anfractus 9 — 10, irregulariter c(»nvoluti, convexi, sub- 

 angulati, sulcis geminatis cingulati seriebusque 2 nodorum armati, ultimus inflatus, 

 basi conipressus, vix caudatus; apertura ampla, intus alba, labro eflfuso, dentibus 

 costiformibus fuscis; columella arcuata, albida, basin versus rugosa, supra plica 

 valida intrante; canalis brevis, semiobtectus. — Long. ad 300 mm. — Var. 

 glahra Wkff. {Tr. filabrnm Loc), uiflectiiahrum. lahropolifiim. imprrans de Gregorio. 



Distrib.: Atlanticum mediuni usque ad Magnara Britanniam; mare rubruni 

 (Aradas). — Fossilis tertiaria. 



Habit. : Litora Hispaniae: Gibraltar (McAndeew), Mataro, ins. balear. : 

 Menorca (Hidalgo); Alger, Bona (Weixkauff) ; litora Galliae (Petit), Roussillon 

 (BucQuoy, Dtzbg., Dfs.), Cette (Gkanger), inde ad Aigues-l^Iortes (Dubreuil), 

 Aigues-Mortes (Cli5ment), Mejean, Eiou (Marion), Toulon, St. Tropez, St. Ra- 

 phael, PorqueroIIes (Locard), le Var (Doublier); litora pedemontana (Jeffreys), 

 Nizza (Risso, Verany), Genova (Tr. nodosus VfiRANv); Corsica (Payraudeau, 

 RfiQUiEN); Sardinia (McAndrew, Gknnari); Civitavecchia (Monterosato); Napoli 

 (Scacchi); Ustica (Calcara), Sicilia (Philippi, Aradas et Benoit), Palermo, is. 

 delle femmine, in aq. prof. (de Gregokio) ; Adria: Lesina, Curzola (Heller), 

 Lissa (Brusina), Macarsca (Stossich) ; Morea (Deshayes) ; mare Aegeum (Forbes). 



Nom. vulg. : Mahon: Corn de curna, Corn de viuda (Hidalgo). 



m 2. Tritonium Seguenzae Ar. et Ben. {Tr. nohile Conr., Tr. variegatum 

 Lam. p., ex opin. Arad. et Ben.). Testa magna fusiformis, infra ventricosa, cauda 

 brevissima, varicibus 12 — 13 latis, planatis, spira elata, irregulariter contorta, 

 anfractibus superis subgranulosis, sequentibus turgidis, gibbosis, plerumque supra 

 angulatis aut infra suturara crenulatam impressis, sulcis geminatis impressis dis- 

 tantibus cingulatis; apertura ovata, canali brevi recurvo, faucibus laevibus, labro 

 dentato, intus plicis geminatis armato, columella rugosa, supra plicis 1 — 2 majoribus 

 munita; albida, maculis purpureo-rubris saepe nebulosis variegata, apertura rufes- 

 cente, rugis albis, coluniella labroque inter rugas nigricanti-purpureis. — Long. 

 ad 270—300 ram. 



Habit.: Litora Hispaniae (Hidalgo, testibus Aradas et Benoit); Sicilia: 

 Aci-Trezza, Siracusa (Aradas et Benoit); Malta (Caruana); Creta (teste Kobelt); 

 Rhodus (coll. d^Orhigny /'. Monterosato). 



3. Tr. parthenopeum Wkff. (Murex parfhenopeus v. Salis, M. olearium 

 L. p., M. cosfafus Born p., 31. argnsfasciatus Chemn., Tr. succincfmn Lam.). Testa 

 fusiformis aut ovato-fusiformis , subventricosa, solida, epidermide lamellosa, ad 

 laraellas hirsuta tecta, rubido-fuscescens, ad variceni unicani castaneo et albo inacu- 

 lata; spira elata; anfractus 5) convexi aut subangulati et super anguluni planati. 

 costis grossis tul)erculatis spiraliltus, 2 — 3 in anfractibus spirae lineisque elevatis 

 numerosis cingulati, oblique striati et costulati. ultiuius basi caudatus; apertura 

 ovata, faucibus albidis aut purpureis; coluniella paullo excisa, castanea, rugis 

 albis; labrum incrassatum, varice limbatura, dentibus validis geniinatis, inter dentes 

 castaneo niaculatum; canalis angustus, subrecurvus. — Long. ad ir^O mui. 



Distrib. : Atlanticum; raai'ia oninia. — Fossilis tertiaria. 



Habit.: Litora Ilispaniae, rar. (Mc Andhew); Alger, in salo, aq. prof. 

 (Weinkauff); litora Galliae (Martin), fort St. Jean, la Joliette (Makion); Civita- 

 vecchia (Monterosato); Napoli (v. Salis); Sicilia (Philippi), Palermo, Aci-Trezza, 

 ]\[alta (Ah.\das et Bknoit). 



II 



