NB. a. Summit or nucleus Lobed outer lip. Ovula. b. Margin of mouth or Pastome. c. The inner or columella lip. d. Outer lip e. Front edge. f. Hinder edge of mouth. y. The hellow axis or umbilicus. h Spire. i. First whorl k. Body whorl. 1. Suture. m. Muscular impression n Longitudinal shit. o. Columella. P Dissepiment between the whorls. The Parts of the various shells having the same number or letter are similar NB a. Summit or nudeus. b. Margin of mouth or Penistome. c. The inner or columella lip. d. Outer lip. e. Front edge. f. Hinder edge of mouth.. g. The hollow aris or umbilicus. h. Spire. i First whorl. k. Body whorl. 1. Suture. m. Muscular impression. n. Longitudinal shit. o. Columella. p Dissepiment between the whorls. N. The Parts of the various shells having the same number or letter are similar. Whorls involute united PLATE 3 a |