10 PROCEEDINGS OF THE MALACOIOGICAL SOCIETY. 



11. Eulota (Plectotropis) Mackensii, Ad. & Eve. Kioto. Five 

 specimens. The characters upon which Schmacker and Bottger base 

 their var. vulgivaga are not, in my opinion, of diagnostic value. The 

 relative width of the umbilicus varies in different specimens, as does 

 the elevation of the spire. I have a specimen from Formosa, which 

 is more depressed than the type, while the umbilicus is wider ; some 

 of my Kioto specimens have the last whorl deflexed in front, in others 

 it is straight. If the Japanese forms are to be separated from the 

 Loo-Choo shells, as seems advisable, it would be more appropriate to 

 designate the former var. minor. The extreme measurements of my 

 specimens are: diam. maj. 21, min. 19mm., alt. 10 mm.; and diam. 

 maj. 26, min. 23 - 5 mm., alt. 13 - 5mm. 



12. Eulota (Plectoteopis) trochula, A. Ad. PL II, Figs. 11-13. 



Izuhara, Tsu-shima Island. Ten specimens. 



I refer my specimens to this species, although similar shells in the 

 British Museum are labelled setocincta. These, however, are not 

 Adams' types, and I doubt the correctness of the identification, 

 since Adams, in his diagnosis of the latter, mentions " peristomate 

 recto, acuto," whereas E. trochula is described "peristomate acuto, 

 expanso, breviter reflexo." The former is also more depressed. The 

 species has never been figured, and I am therefore pleased to have 

 the opportunity of giving a figure. Adams' specimens were also 

 obtained from Tsu-shima Island. The specimens vary in colour from 

 pale corneous to rufous, lip white or pink. 



Diam. maj. 15, min. 13 mm.; alt. 9mm. 

 it ii 14, ii 12"5 ,, ,, 8 ,, 



13. Eulota. (Plectotropis) Hirasei, n.sp. PI. II, Figs. 4-7. 



Shell widely and deeply umbilicated, conical, very finely striated ; 

 from dull yellowish to greenish corneous, with a thin cuticle, which 

 is provided with rows of fine short scales, coincident with the lines 

 of growth. Spire conoidal, suture impressed. Whorls 6— 6|, very 

 closely coiled, and increasing slowly, a little convex above and 

 somewhat flattened below ; the last descending abruptly and very 

 deeply in front, gibbous behind the peristome. Aperture sub- 

 horizontal, subtriangular-obovate ; peristome scarcely thickened, the 

 margins convergent, the upper at first straight, then inflected, the 

 outer and lower expanded and reflected, the columellar margin a little 

 reflected towards the wide perspective umbilicus. Diam. maj. 6, 

 min. 5*75 mm. ; alt. 3 - 5 mm. 



Sab. — Kioto. Type in my collection. 



This interesting new species is intermediate between E. meniscolepis, 

 Bottger, an undescribed species, and E. Patungana, Gredl., both from 

 China ; but the umbilicus is narrower and the spire is more elevated 

 than in either of these, while the aperture is quite different. Named 

 in honour of the Japanese gentleman who collected my shells. 



14. Eulota (.ZEgista) Kobensis, Schm. & Bttgr. Senzan, Awaji 

 Island. Two specimens. Hitherto only recorded from Kobe, which 

 is opposite Awaji Island. 



