1 I t MOLLUSCA TKRRKSTRIA ET FLUVIATIUA 



nicatam sequòr, qiii A.-productam Lowe lamquam A.-tornatellinae Lowe fonnain 

 peculiarem, nec specilicam haberit. 



Species inter alTincs certc distincta. 



Primi invenerunt clariss. Rev.'' Loweus et Wollastonus. 



Scctio Aoicnla (Risso) 



Testa cyliiidrico-áiihlinearis s. angustato-eloiigata, tenuissima, fragillima: 

 anfractus (5-7 plaiiulati; coliimella subarciiata, ohsolete truncata; apertura an- 

 giista, lanceolata, interdmn iiniplicata; peristonia simplex, aciitiim, raro suliar- 

 cuaturn. 



8. Acliatiiia acicula, Miiiler 



Tesla suhulala, fiisilorini-cyliiidracea, aciculari-turrita, gracilis, hyalina. ui- 

 tens, alhida; spira laxa, acicularis, apice attenuata; sutura obliquissima, aiigusle 

 inarginata; aiifractiis 6-7 plani, ultiinus ^/s longitiidinis aeqiians, spira brevior; 

 columolla laxe arcuata, tiasi angiiste abniptoqiie triiiicata; apertura ovato-augu- 

 stata s. lanceolata, supra acuminata, spira maiiifesle bievior; peristoina sitn[)lex, 

 rectum, tenui', aculum. — Animal valde timidum, corpore omiiiint albo, seinipel- 

 lucido, liueatiui inamiliato s. giMnulato, superioiibus teiitaculis cyliiidricis, oeu- 

 lis deslitulis, inlerioribus bulbilbrniibus, íere inconspicuis, pede compresso, po- 

 stice acuto, ad testae anfractum penultimum desiiiente, pallio denso, longitudinali 

 iinea medio, exserta notalo. 



Long. 4 Va, diam. 1 V2> apert. 2 mill. longa, -Ti lata. 



Buccinum acicula, Miill. Verm. Hist. 



Helix » Li)\v. Prini. 



Aclialina » ITeif. Mon. helic. 



» » Reev. Conch. (Ilg. indistincta) 



» » Low. Cat. nioll. Mad. 



Tilandina » Alb. Mal. Mad. (lig. bona) 



Habitat frcqucns, praeserlim liyeme, ad rupes raurosque adliaerens v. ad 

 fruticum arborumípie radices profunde latens, iii tota fere Kuropa, v. g. in Lu- 

 sitânia ciica Porlo, in Algéria, Grécia; etiam ad marilinias rupes iiisulae Made- 

 rae. prope Ponta do Pargo, S. Gonçalo, Praia Formosa, Ribeira de J. Gomes; 

 in insulis Desertis Majore et Auslrali rarior. 



Variot. adsunt; a graciiis, lesta anguslissima, fragilliina, minulissima, fie- 

 quens prope Praia Formosa ad terram humentem recôndita: [3 major, testa du- 

 [)lo ampliore, inferne venlricosa, ad Caniçal in liumidis non lara. 



