260 EMARGINULA. 



ribs ; interstices regularly cancellated, the pits arranged in single 

 series; margin of the aperture crenulated, slit profound. (Ad.) 



Bolinao, province of Tambalas, Luzon, Philippines, 10 fms. 

 E. retecosa Ad. P. Z. S. 1851, p. 86, no. 32. — E. reticosa Sowb. 

 (as synonym of E. reticulata), Thes., p. 214, f. 49. 



E. adamsiana Sowerby. PI. 28, fig. 32. 



Subroseous, elliptical, cancellated with large rugose radiating 

 ribs with smaller intermediate ones, and inequal lira?, all minutely 

 scaly. Back arcuate, apex recurving back of the posterior margin. 

 This species is more coarsely ribbed than E. rosea, and the surface 

 of the ribs is minutely cancellated. (Sowb.) 



Japan. 



E. adamsiana Sowb., Thes. p. 214, f. 27, 28. 



E. galericulata A. Adams. PI. 28, fig. 20. 



Obliquely conical, capuliform, vertex strongly curved, projecting 

 over the posterior margin ; closely clatbrate with narrow, crenu- 

 lated radiating riblets, with transverse elevated lines in the inter- 

 stices ; front rib granulate-punctate above the slit ; margin of the 

 aperture crenulated, deeply incised in front. (Ad.) 



Calapan, Id. of Mindoro, Philippines, 12 fms. 



E. galericulata Ad., P. Z. S. 1851, p. 84, no. 23. — Sowb., Thes. p. 

 215, f. 24. 



E. excurvata A. Adams. PI. 28, fig. 29. 



Shell elongate-elliptical, depressed-conic, testaceous ; apex acute, 

 subposterior, inclined backward ; cancellated with radiating ribs and 

 elevated concentric lira? ; lirse nodulous at the ribs ; base arcuate ; 

 margin of the aperture excurved, crenulated, deeply incised in front. 

 (Ad.) 



Habitat unknown. 



E. excurvata Ad. P. Z. S. 1851, p. 85, no. 27. — Sowb., Thes. (as 

 synonym of E. puncticulata), p. 215, f. 35. 



E. tenuicostata Sowerby. PI. 28, fig. 21. 



Elliptical, elevated-conic, concentrically subfasciate with green ; 

 cancellated with numerous noduliferous ribs and minute concentric 

 stria? ; fissure profound ; cicatrix behind the slit, foveolate. This 

 species resembles E. puncticulata but is much more finely sculptured ; 



