THE CYCLOPHORID LAND MOLLUSKS OF AMERICA 105 



PTYCHOCOCHLIS SUBRUGOSA (Sowcrby) 



Plate 15, Figures 25, 26 



1850. Cyclostoma suhmgosum Sowerby, Thes. conchyliorum, vol. 1, Supplement. 



p. 161*, pi. 31B, figs. 308-309. 

 1852. Cyclotus suhrugosus Pfeiffer, Monographia pneumonopomorum viventium. 



vol. 1, p. 28. 

 1898. Neocyclotics (Plectocijclotus) subrugosus Kobelt and Mollendorff, Nachrb. 



deutsehen malak. Ges., vol. 29, p. 139, reprint. 



Since I have not seen this species, I quote Sowerby's description and 

 reproduce his figures : 



"Shell suborbicular, depressed, slightly corrugated, white; spire 

 depressed, obtuse, slightly prominent at the apex; volutions four, 

 rounded, slightly depressed posteriorly ; suture distinct, marked with 

 a nearly obsolete line in front; aperture nearly circular; peritreme 

 slightly thickened posteriorly, thin on the side of the umbilicus, sepa- 

 rated from the last volution ; umbilicus large, anteriorly keeled. 



"This species is related to C. corrugatum. 



"Jamaica." 



Genus POTERIA Gray 



In 1850 Gray, in his "Nomenclature of Molluscus Animals and Shells 

 in the Collection of the British Museum," part 1, Cyclophoridae, page 

 11, defines the name Poteria, which he had used in his "Synopsis of the 

 Contents of the British Museum," in 1840 and 1842, as a nude name, by 

 stating, "whorls in front of the axis keeled. Peristome straight." 

 Here he cites two species without designating a type : 



27. Cyclotus uneatus [Gray]. 



Cyclostoma jamaicense Soiv. Thes. Conch, i. 96. n. 15. t. 23. f. 12, 13., not 



Gray. 

 Aper. jamaicense Pfeiff. 1. c. 104. n. 3. 



* * * * * * * 



28. Cycloti^s jamaicensis [Gray]. 



Cyclost. corrugatum Menke, Cat. Malak. 10. ; Soio. Proc. Zool. Soc. 1843, 30., 

 Thes. Conch. 1. 95. t. 23, f. 10, 11. ; Pfeiffer, Kuster, Chemn. Conch. Cah. 

 17. n. 8 i. 19. t. 2, f. 13, 14. 



Turbo jamaicensis Chemn. Concli. xi. t. 209. f. 2057, 2058. 



T. (Cyclostoma) jamaicensis Gray in Wood's cat. Supp. t. 6. f. 3.; Lister, 

 Conch, t. 55. f . 51. ; Sloane, Jamaica, ii. t. 240. f. 84. 



Aper. corrugatum Pfeiff. 1. c. 104. n. 4. 



In other words, he lumps here about everything known from Jamaica 

 at that time except what had been segregated to form his Cyclotus 

 Uneatus. 



Baker, in 1922, Nautilus, vol. 35, pages 14, 15, resurrected the forgot- 

 ten name Poteria and designated Turbo jamaicensis (Chemnitz) Wood, 

 1828, as type. This, unfortunately, still leaves some doubt about the 



