— 190 - 



albo incrassato; colore bruimeo apert. et basi ult. anfr. alba, 

 ad labrum bimaculata. — Long. 5, diam. 2,5 jVIm. 



Eissoa maig-iuata Michaud Descr, coq. p. 13 F. 16. — Desh. Lam. 



VIII p. 468. — Schwarz p. 29 T. 2, F. 16. - Weinkaiiff Mittelm. 



p. 293. - M. Ch. II p. 141 T. 15 d, F. 15. - Monteros. Nuov. 



Eiv. p. 26. — (Sahanea) Monteros. Nomencl. p. 55. — Locard 



Cat. 2'.2. 



Hab. Mare mediterraneum. 



54. Rissoa Mayeni Friele. T. ovata, plus minusve 

 rimata, conica, solida, rufescenti-brunnea; anfr. 5, inferi superne 

 carina spirali cingulati, liris spiralibus rudibus 5—8 in ult., in 

 superis evanescentibus, costisque concentricis prominentibus, ad 

 carinam interdum nodosis sculpti; apert. ovato-rotundata, long. 

 3/7 occupans, infra subexpansa, cum columella rectiuscula angu- 

 lum formans. — Long. 5, diam. 2 Mm. 



Rissoa Janmayeni Friele Nyt Mag. 1878 p. 5 F. 4. — M. Ch. II 

 p. 175, T. 22, F. 13. 

 Hab. Mare arcticum. 



55. Rissoa melanostoma Requien. T. elongata, 

 acuta, pellucida, fulvo longit. lineata, spiraliter striata, apert. 

 nigrq marginata. — Long. 3,5, diam. 1 Mm. Req. 



Rissoa melonostoma Requien Corse p. 53. — Weinkauff Mittelm. 

 p. 315. — (Apicularia) Mouteros. Nomencl. p. 57. — Locard Cat. 

 p. 260. 

 Hab. Mare tyrrbenum, 



56. R i s s a m e m b r a n a c e a A d a m s. T. ovato-elongata 

 vel turrita, tenuicula, membranacea, subbyaliua; anfr. 7 — 8 

 convexiusculis, laevibus sive longit. costatis, ult. intiato, laevigato 

 vel costis abbreviatis obsoletis ornato; apert. magna, ovata vel 

 oblonga, superne angustata, inferne rotundato-repanda; labro 

 paullo incrassato, labio refiexo ad basin libero; columella sub- 

 truncata ; colore corneo fuscescente vel brunneo, lineis undulatis 

 irregulariter inflexis rubro-fulvis ornata, ad labrum maculis 

 tribus. — Long. 7—9, diam. 2,5 - 3,5 Mm. Scbwarz. 



Turbo memhranaceus Adams Linn. Trans. V T. 1, F. 14, 15. — 



(Rissoa) Scliwarz Rissoid. p. 19 T. 1, F. 7. — Jeffreys Br. Conch. 



IV p. 30 T. 67, F. 8. — Weinkauff, Mittelm. p. 290. — Reeve 



Conch. ic. sp. 67. 

 Helix lahiosa Moutagu Test. hr. p 460 T. 14, F. 7. — (Rissoa) 



Forhes et Hauley III p. 169 T. 76, F. 5. T. 77, F. 1--3. - Sow. 



111. lud. T. 13, F. 21. — Reeve Conch. ic sp. 12. 

 Rissoa fragilis Michaud Rissoa p. 12 T. 1, F. 9. — Desh. Lam. VII 



p. 474. 

 Rissoa Souleyetiana Recluz Rev. Zool. 1842 p. 5. 

 Turho costatus Pult., Rissoa pulla Brown. 



Hab. Mare mediterraneum et Oceanum atlanticum. 



57. Rissoa Messanensis Seguenza. T. ovato-ob- 

 longa, subtranslucida , viridi-lutescens , maculis saturatioribus 

 plerumque biseriatim dispositis ornata, laevigata, spira brevius- 

 cula, apice obtusulo; anfr. 5 convexi, regulariter crescentes; 



