372 Gastropoda. — Ctenobranchia. 



(Inctis, solida, opaca, nitidiuscnla, costis 22 — 25 transversis scnlpta, nivea, im- 

 macnlata, spira obtecta, apertnra leviter arcnata, angnsta, labio ante et post snb- 

 varicoso, intns longitndinaliter snbexcavata, denticnlis 19 — 22 in labro, 15 — 17 

 in labio instructa. — Long. 8, lat. 6 mm. 



D i s t r i b. : Atlanticum lusitanicnm. 



Habit. : Algesiras (HiDAiAi(j); Alger (Joly, Monterosato). 



(Nom. vnlg. : Santander: Margaritas blancas, Hidalgo.) 



Erato Risso. Fes elongatus, antc suhtruncatus, lateribus angulosis, post atte- 

 vuatus, tcntacula linearia, cUvcrgentia. oculi ad eornm hasin extra pedunculis brevihus 

 insictentcs; j^allii toln tnherciilati in testam rcjiexi, tertiam partem facici dorsalis non 

 tcgentes; siplio sat longiis, dcns centralis radtdae midticuspis, lateralis arciiatiis multi- 

 cuspis, marginalcs acidcati simplices; testa subpiriformis aut subovata, polita, laetis, 

 spira distincta, conica, anfractu idtimo permagno; apertura angusta, linearis, labrum 

 medio hicrassatum , intus subtilitcr dcnticulatum , colnmeda plicis anficis paullo pro- 

 silientihus; canalis posterior nidlus. 



1. E. laevis Sow. {VolutalaevisT^OT^., Margindla Donovani Va\-r., E. cypraeola 

 Risso, Ilarg. Jaevis Phil., F. et H.). Testa ovato-subtnrbinata, supra inflata, 

 basi valde attennata, laevis, nitida, alba; spira brevi, obtnsa, anfractibus ob- 

 soletis; apertwa angnsta, elongata, qnam testa paullo brevior, labro incrassato, 

 intus reflexo, snbtiliter denticulato; colnmella recta, in adultis callo tenui denti- 

 cnlato munita, ad basin plicis 4 obliquis, superis majoribus armata. — Long. 10, 

 lat. 6 mm. 



Distrib.: Atlanticnm ad Magnam Britanniam. — Fossilis tertiaria. 



Habit. : Litora Hispaniae: Gibraltar, Cartagena (McAndkew), Barcelona, 

 Mataro (Hidalgo); Alger (Weinkauff); litora (ralliae (Petit), Agde (Petit), 

 Katonneau, chateau d"If, la Cassidagne (Marion), Toulon, St. Raphael (Petit, 

 Doublier); Nizza (Risso, V^.rany), Genova (VifiRANY); Corsica (RSi^uien), Ajaccio, 

 Sta Manza, is. Lavezi, Cavallo (Payraudeau) ; Napoli (Scacchi, Philippi); Lipari 

 (Aradas et Benoit); Sicilia: Palermo (Philippi, Montekosato), Messina (Se- 

 guenza), et Aci-Trezza (Aradas et Benoit), Sciacca (Del Prete); Pantellaria 

 (Mc Andrkw); Adria: Ossero (Stossich), Zara (Brusina); mare Aegeum (Forbes). 



4. Canalifcra Lam. 



34. Fam. DOLIIDAK Gray (l)oJiaria Latr.). Pes permagnus, testam per 

 omnes partes excedens, tentacuhv subulata, oculi prope ad eornm basin; dens cen- 

 tralis radnhie brevis, latus, cuspide modia longa acuta et cuspidibus hiteralibus, 

 lateralis et primus marginalis margine simplici ant denticnhito, secundus simplex 

 acutus; testa ventrosa, spira brevi, costis spiralibns sculpta ant cancellata; oper- 

 culum nnllum. 



Dolium La.m. 1'ullium in tcstam non rcjicxum; rosfrum Jonguni, crassum; 

 sipho longus; penis magnus, arcuatm, sulcatus; dens centralis radtdae tricusjMS; testa 

 plcrumquc fenuis. itvata. apcrtura permagna. lahro crcnuJafo <iut dcnticidafo. 



1. D. galea Lam. {liuccinum galca L.) [Subg. JJoJium, h»bro simplici, crenu- 

 hito]. Testa permagna, nml)ilicata, ventricosissima, albido-fusca, raro indistincte 

 zonata, spira brevi, paullo prominula, sutura canalicuhita; anfractns 5, primi 

 hieves, seqnentes spiraliter costati, nltimus fere totam testam formans, costis con- 

 fertis convcxis circ. 22 — 24 cingulatus, interstitiis superis lira divisis: apertnra 

 basi emarginata, pallide rnfescenti-fusca, columella contorta, basi tantum callo 



