214 Gastropoda. — Gymnobranchia. 



vata, rhmophoria longa, annulatim lamellosa, lutescentia; papillae dorsales ire 

 series 7, quae (5, 7, 5, 4, 3, 8, 2 papillas gerunt, dispositae, subcylindricae, cur- 

 vatae adeo ut apex basin aspiciat, pallide griseae, maculis albis rotundis aut 

 elongatis conspersae, apex albo-roseus aut aurantiacus. — Long. 15 — 20 mm. 



Distrib.: Sinus Biscayensis, Arcachon. 



Hiibit.: Alg-er (Tibkhi). 



Eolidiam annulicornem (Facelinam ?Bergh) non Otto , sed De Chamisso- 

 et Eysenhardt descripserunt ; species reperta est non in Mediterraneo sed in fuco> 

 natante Atlantici. 



Acanthopsole Trixch. Corpus gracilius elonyatum; rhinophoria anmdata 

 aut sinipUcia, non perfoliata; tcntacuJa tongissima; pes aittice angidis tentaculatim 

 productis; margo masticatorius mandihrdarum serie denticidorum unica; radula uni- 

 seriata, paucidciitata, dcntibus cuspidatis, dcnticulatis ; pcnis magnus, glande margine 

 spimdarum scric armata. 



m 1. Ac. rubrovittata Trin( h. (Acolis ruhrovittata A. Costa). Lutescens, 

 dorso lineis tribus h)ng:itudinalibus interruptis rubris; tentaculis labialibus albidis^ 

 dorsalibus dimidio basali fuscis, apicali albis, spiraliter annulatis; branchiis fusco- 

 rufis apice albidis, utrinque in fasciculos 5 digestis. — Long. max. oO mm. 



Habit. : Genova (Trixchese); Napoli (A. Costa). 



m var. Ac. albida Bgh. Color pellucide albescens, tentaculis, rhinophoriis 

 et margine anteriore pedis albidus, cauda supra coerulescente albidus; lobi hepatici 

 brunnescente-flavide pellucentes. — Long;. 16 mm. 



H a b i t. : Adria : Trieste (Graeffk). 



m var. Ac. vicina Bgh. Corpus fere decolor, pellucidum; caput cum tentaculis 

 pallide rosaceum; rhinophoria rubescente brunnea, apicealbo; papillae dorsales apice 

 albo, linea axiali pellucente brunnescente-olivacea ; dorsum caudae, margo posterior 

 tentaculorum et anterior papillarum coerulescente-argentea. — Long. 17 mm. 



Habit: Adria: Trieste (Graeffe). 



m 2. Ac. lugubris (Graeffe) Bgh. Color paginae superioris ater albo 

 maculatus ; tentacula atra albide punctata ; rhinophoria lutescente albida , atro 

 maculata et annulata; papillae atrae, albide maculatae, apice albo; pes pellucente 

 albescens. — Long. 20 mm. 



H a b i t. : Adria : Trieste (Graeffe). 



m var. Ac. moesta Bgh. Color corporis sicut capitis cum tentaculis et 

 rhinophoriis albus nigro dilute maculatus; papillae dorsales elongatae brunneae, 

 apice albo. — Long. 8,:') inm. 



Habit. : Adria: Rovigno (Graeffe). 



Caloria Trinch. Bhinophoria plicata, non jicrfoliata. scctionc transvcrsa cir- 

 culari; tcntacula riiinophoriis limgiora; pcs angidis anticis tcidacidiformibus; papiUae 

 dorsalcs agminatim in scries transvcrsas ordinata; cvtremitas supera loliorum hepati- 

 corum in glandulam lohatam terminata; sacculi cnidophori; anus latcrcdis dcxtcr intcr 

 1 et 2 seriem papillarum; pcnis incrmis; radula brevis, uniscriata, dentibus eis Facc- 

 linarum simdibus; mandihidac incisura profunda in 2^ortcs duas divisac; oculi sessiles; 

 otoci/stac otoconia munitac. 



m 1. C. maculata Trinch. Caput parvum, cauda elougata; pes albu^i 

 translucens, in dorso partis posterioris, ad apicem angulorum anteriorum sicut iu 

 facie antica tentaculorum stria albo-opaca; papillae in agmina 7 — 8 utrinque ordi- 

 nata. duo anteriora e seriebus 5 — (5, reliqua e seriebus 2 — 3 constantia; lobi 

 licpatici flavo violacei. — Long. 20, lat. ped. 3, long. tentac. 8, rhiuophor. 5 mm. 



Habit. : Sinus neapolitanus: Secca di Chiaja (Lohianco, Trinchesk). 



