270 HELIX §. 96 — 98. 



p. 51. — Reeve N. 676. t. 117. — Patera Alb. 

 p. 97. — H. Mitchelliana Desh. I. c. p. 137. N. 

 182. t. 97. f. 4 — 7, nec 13 — 16.) Mon. I. p. 291 



1582. Mitchelliana Lea, (Coll. 861? — Chemn. ed. 



nov. I. p. 332? — Patera Alb. p. 97. — H. 



clausa De Kaij 1. c. p. 31. t. 2. f. 13.) - - - 291. 



1583. plicaria Lam. (Coll. 862. — Desh. 1. c. p. 112. 



N. 153. — Chemn. ed. nov. II. p. 41. — Mycena 



Alb. p. 124. — H. plicatida Chenu t. 6. f. 9.) . - - - 291. 



1584. H. Bethencourtiana Shuttleworth. •{• 



T. obtecte perforata, tenuis, orbiculato-depressa, lutes- 

 centi-fusca, fasciis 5 brunneis interdum confluentibus vel ob- 

 soletis ornata, elee;anter plicato-costata , coslis laevibus; spira 

 depressa; anfr. 47^ convexiusculi, ultimus antice subito de- 

 flexus; apertura subhorizontalis, subovalis; perist. acutum, ex- 

 pansum, reflexum, fusco-roseum, marginibus conniventibus, 

 basali calloso. — Diam. maj. 22, min. 18, alt. 11 mill. (Sh.) 

 Helix Bethencourtiana Shuttl. Diagn. n. Moll. N. 1. p. 9. 

 — Pouchet Fer. hist. t. 42. f. 3 ult. ad dextr. ? 

 Habitat prope Santa Cruz Teneriffae (Blauner). 



Obs. «Species saepe cum H. plicaria Lam. confusa, sed certe di- 

 stincta, inprimis testa tenuiori, costis regularibus laevibus, nec granu- 

 lato-crispatis, et peristomio multo minus cailoso, vel expanso: magis H. 

 planorbellae Lam. affinis, a qua praesertim perforatione omnino obtecta 

 et forma aperturae ditiert. » 



§. 97. 



1585. elevata Say. (Coll. 863. — De Kay 1. c. p. 36. 



t. 3. f. 20. — Chemn. ed. nov. I. p. 56. — Desh. 

 I. c. p. 329. N. 390. — Reeve N. 681. t. 117. — 

 Patera Alb. p. 97.) Mon. I. p. 317. 



1586. zaleta Say. (Coll. 864. — Chemn. ed. nov. I. p. 



81. — Desh. I. c. p. 139. N. 186. — Reeve N. 

 622. t. 114. — Patera Alb. p. 97. — H. cxoleta 

 Binn. mss. De Kaij \. c. p. 27. t. 2. f. 6.) . . . - - - 316. 



§. 98. 

 1587. H. abjecta Gould. -^ 



«Another form, found in the South-western States , is al- 

 Hed to //. appressa and H. paltiata. It is a h*ttle more glo- 

 buiar than the former, has its peculiar imperforate base, but 

 its aperlure is more open and rounded, and destitute of a 

 tooth. //. columhiana is slill more globular, smoother, with 

 an open umbilicus and a peculiar sinuosity of the hp. I would 

 indicate this form by the name of H. abjecta.y) [Gould m 

 Proc. Bost. Soc. 1848. p. 40.) 



Obs. Nonien si bona species est, mutandum ob H. abjectam Lowe. 



