210 EULOTA. 



Section Aegista Albers, 1860. 

 Aegista ALB., Die Hel., 1860, p. 121, type H. oculus Pfr. 



Shell depressed and broadly umbilicated, solid, striated ; brown, 

 unicolored or with a light peripheral baud; spire low, composed of 

 many narrow whorls, the last not keeled, descending in front. Aper- 

 ture round lunar, oblique, the peristome toothless, narrowly ex- 

 panded, somewhat thickened within, reflexed at base, ends converg- 

 ing. Type E. oculus Pfr., pi. 64, figs. 13, 14, 15. 



External anatomy and genitalia unknown. Jaw arcuate, with 

 about 6 wide, low, but separated ribs (pi. 65, fig. 10, E.platyomphala). 

 Radula showing the same characters described for Plectotropis, but 

 the outer marginals have the ectocone bifid (pi. 65, fig. 9, E. platy- 

 omphala). 



Shells of this section differ from Plectotropis in lacking the peri- 

 pheral keel and in the smoother surface, but there are some inter- 

 mediate species. It has the same geographic range, extending north- 

 ward to Kiusiu Island, Japan. The jaw of the only species examined 

 has fewer ribs than in Plectotropis, but this is not likely to prove a 

 constant difference. 



(Species of Japan, Liukiu Islands and Formosa.) 



E. kobensis Schm. & Bttg., viii, E. oculus Pfr., iv, 59. 

 196. typinsana A. & R. 



E. friedeliana Mart., iv, 61. E. vermis Rve., iv, 60. 



E. circulus Pfr., iv, 61. E. subchinensis Nev., iv, 62. 



(Species of China and India.) 



^E. chinensis Phil., iv, 60. E. subcinctula Hde. 



E. pseudochinensis Moll., iv, 60. E. squamosella Hde. 



chinensis Hde., not Phil. E. meusalis Hde. 



E. platyomphala Moll., iv, 61. E. thoracica Hde., iii, 221. 



E. serpestes Hde. E. secundaria Hde. 



E. herpestes Hde., i v, 60. E. mellita Hde. 



E. furtiva Hde., iv, 60. E. mellitula Hde. 



E. aubryana Hde., iv, 60. E. permellita Hde. 



E. accresens Hde., iv, 61. E. rebellis Hde. 



E. hupeana Gredl., iv, 259. E. languescens Hde. 



.E. phayrei Theob., iv, 55. E. vicinella Hde. 



