96 THE NAUTILUS. 



So far the species has been known to exist only in North Carolina, 

 and I deem it worth of notice that a new locality has been found. — 

 Dr. Fr. Stein, Indianapolis, Ind., in letter to ed. 



Species Determined. — From Mrs. M. Burton Williamson, Uni- 

 versity P. O., Cal. No. 1 (a) Cytherea lusoria Chemn., Japan ; 

 1 (b) Cytherea meretrix Linn. Var. castanea. Lam., Japan. 2. 

 Neritula neritea Linn., Crimea ; 1. (small ones) Neritula Kamies- 

 chi Chemn. Crimea ; 3. Bittum reticulatum, De Costa, Crimea ; 4. 

 Phasianella pulla, Linn., Crimea ; 5. Mytilus minimus Poli, Crimea ; 

 6, Rissoia violacea, Desm., Crimea. — C. W. J. 



ScALPELLUM Stearnsii. — The Writer fouud numerous specimens 

 of an undescribed Scalpelliim in a collection of Japanese mollusks 

 and crustaceans made by Mr. Frederick Stearns of Detroit, Mich. 

 The form differs from all recent species known, in the shape of the 

 carinal latus, which projects in a long recurved hook below the 

 carina. In this respect it is close to the ^S". Pfeifferi Weithofer, an 

 Austrian miocene species. From this it is separated, however, by 

 the form of the inframedian latus, which is about as bi'oad as high 

 in the S. Stearnsii, but is decidedly higher than broad in S. Fj'eifferi. 

 The sculpturing of the valves also differs from the form named. 

 Illustrations will be given later. — H. A. Pilshry. 



Species Determined. — From M. Schepman, Rhoon, near Rot- 

 terdam, Holland. 1, 2, 5, Cerithium ferrugineum Say; 3, C.ferrii- 

 gineum var. versicolor Ad. ; 4, C ehurnemn Brug; 6, 7, C. atratum 

 Born.; 8,9,10, 11, 12, C. minimum Gmel. All from the Baha- 

 mas.— il. A. P. 



LuCAPiNELLA, A new genus of Fissurellidae. — This genus was 

 defined in my key to the genera of Fissurellidinae in the Manual of 

 Conchology, part 47, but no type was mentioned, as the text relat- 

 ing to the genus will appear in the next part of that work. It in- 

 cludes the " Clypidella" or " Fissurellidea" calliomarginata Cpr. of 

 California, and the following forms: ceqiialis Sowb., Panama; lima- 

 tula Rve., West Indies ; and aculeata Reeve. It differs from Fis- 

 surella and all its subgenera in having the central teeth of the rad- 

 ula of a square shape, about as broad as long ; from Fissurellidea, 

 Pupillcea, Lucapina, Megatebennus in having the shell entirely free 

 from the mantle which more or less envelopes it in thuse genera; 

 the fleshy foot being likewise nude, not covered by the mantle. 

 The margins of the shell are nearly level, as in Lucapina, and the 

 orifice is about in the middle. — H. A. Pilsbry. 



