— 178 — 



oblongo-conica, subventricosa, apice obtiiso, alba, teniiis, laevis- 

 sima, pellucida; anfr. 4 convexis, imo intlatis, suturis profundis 

 divisis ; apert. rotundata, vix superne angulata, ^j^ long. aequans, 

 perist. continuo, simplici, labro leviter distincto, rimam umbili- 

 calem quasi relinquente, basi convexa. — Long. 1 Mm. 



Rissoa Alleryana AracL et Ben. p. 211 T. 4, F, 11. — (Setia) Monteros, 



Euum. p. 28. - M. Ch. II T. 25, F. 7, 

 Rissoa ambigua Brugnone fide Monteros, 

 Hab. litora Siciliae. 



7. Ptissoa angulata Jeffreys. T. imperforata, regu- 

 lariter breviterque conica, solida, opaca, nitidula; anfr. 4 com- 

 pressi, costis fortibus leviter curvatis 10—12 sculpti, spiraliter 

 liaud striati; ult. spirae long, superans, distincte angulatus, 

 costis super peripheriam haud productis; sutura simplex ; apert. 

 obtuse triangularis, labro acuto, intus liaud crenato; labio co- 

 lumellari incrassato. — Long, 2, diam. 1,2 Mm. 



Eissoa angulata .Jeffreys Pr Z. S. 1884 p. 119 T. 9, F. 5. — M. 

 Ch. II p. 178 T. 23, F. 7. 8. 

 Hab. Adventure Banc Maris mediterranei. 



8. Rissoa aspera Philippi. T. oblongo - conoidea, 

 solidula, albida, liris spiralibus pallide fulvis, fascia rufescente 

 ad basin anfr. ultimi ornata; anfr. 6—7 valde convexi, liris 

 spiralibus elevatis regularibus, 6 in anfr. spirae 9 in ult., cos- 

 tisque 8—9 tumidis, convexis, supra infraque evanidis sculpti; 

 apert. exacte ovata, utrinque rotundata, Va loi^o- aequans; la- 

 brum extus costa majore marginatum, intus dentato-sulcatum, 

 labium valde distinctum, laeve^ lilacinum, — Long. 6 Mm. 



Eissoa aspera Philippi Enum. II p. 126 T. 22, F. 6. — Brusina 



Contr. p 27. - (Alvania) Weinkauff Mittelm. p. 388. - M. Ch.II 



p. 172 T. 22, F. 5. — Monteros. Enum. p 24, 

 Alvania costulosa Schwarz teste Weinliauff, R. variegata Dau. e 



Sandri teste Monterosato. 



Hab, Mare mediterraneum, rara. 



9. Rissoa auriscalpium Linne. T. subulato-elongata, 

 lucida, liyalina, apice acutissima; anfr. 10 convexiusculis vel 

 subplanis, laevigatis vel obsolete longitudinaliter latecostatis, 

 ult. costis evanescentibus, ad basin striis spiralibus 3—4 sub- 

 tilissime punctatis ornato; apert. semiovata, superne subangu- 

 lata, interne expansa, labro valde dilatato, extus varice in- 

 crassato; alba vel tiavescens, lineis fuscis longitudinalibus; labrum 

 incrassatum maculis 3 fulvis ornatum. — Long. 7,6 Mm. 



Turho auriscalpium Linne ed. 12 p, 1240. — (Rissoa) Philippi 

 Enum. II p. 125 T. 23, F. 2. - Forbes et Hanley III p. 148. - 

 Schwarz Rissoidae II p. 13 T. 1, F. 1. — Weinkai^ff Mittelm. 

 p. 285. — Reeve Conch. ic. sp. 11. - Bucquoy T. 83, F. 6-11. 

 — (Zippora) Monteros. Conch. litt. p. 15. — Locard Cat. p. 253. 



Turbo marginatus Laskey Mem. Wern. Soc. I p. 406 nec Montagu. 



Rissoa acuta Desmarest BuII. Phil. VIII T. 1, F. 4. — Desh. 

 Lam. VIII p. 470. 



