217 
148. C. Lyonnetianum (Cyclost.), Syn. Diagn. 15. no. 70; 
Pf. Mon. Pneum. p. 52. no. 89. 7. trochoidea ewilissime spi- 
raliter striata; anfr. ult. angulato-carinato. 
Diam. 3—33, alt. 4—4}. Anfr. 5—52. 
Had. in convallibus Madere recens, fossilisque ad Canigal rara, 
Wollaston. 
Division B. Ampu1s1 (Littorales). 
Family V. TRUNCATELLID&. 
(Operculatze. Tentacula 2, oculis ad basin externam. Pes simplex.) 
Genus 1. TRUNCATELLA, Risso. 
(Typ. T. truncatula, Drap.) 
149. T. Truncatuta, Drap.; 7. truncatula 2. costulata, Zool. 
Journ. v. 302. t. xiii. f. 13-18. Z. costulata, Risso, Hist. iv. 125. 
no. 301. f. 57. Cyclostoma truncatulum a, Drap. 40. no. 17. t. 1. 
f. 28, 29; Lam. vi. 2.p. 149. no. 28. Rissoa truncata, var. major, 
Phil.i. 151. Testa juv. Paludina Desnoyersii, Payraud. Catal. 116. 
no.-245. t. 5. f. 21, 22? 
Hab. sub lapidibus magnis rotundatis, zestu maris quotidie sub- 
mersis, siccisque deinde relictis, in littore septentrionali Promont. S* 
Laurentii Madere. 
Obs. Experimentis in Zool. Journ. v. pp. 280-305 relatis non ob- 
stantibus, animalia Truncatelle <Auriculeque (Conovuli) Pedipe- 
disque potius pulmonifera quam branchifera esse, perpensis diu un- 
dique argumentis, probabilius videtur. 
Family VI. AuricuLiIp2&. 
(Inoperculate. Tentac. 2, oculis ad basin internam.) 
Genus 1. Auricuxa, Lam. (Pes simplex.) 
(Typ. 4. Mide (Argenv.) Lam.) 
§ 1. T. ovata v. oblonga, spira exserta. 
150. A. aquaxis (Melampus), Zool. Journ. v. 288. no. 1. t. xiii. 
f, 1—5. 
Varr. a, castanea, obscure subfasciata ; 3, tota alba. 
Hab. infra lapides littoris Septentr. Maderee. 
151. A. Gractiis (Melampus), Zool. Journ. 1. c. no. 2. 
Hab. in fissuris rupium littoris Meridionalis Madere. 
Obs. Prioris forsan mera var. v. status. 
