LATIEUS, 179 



LAMPAS. Moiitf. Lentictjltka, Bl. A genus of microscopic 

 Foraminifera. 



LAMPEODOMA. Swainson. A genus of " Olivina?," Sw. thus 

 described: — " Mitriform; spire produced, conic; resembling 

 MiTEELi/A in shape, but the suture is channelled ; the aperture 

 effuse at the base, contracted above ; lower half of the pillar 

 with 6 to 7 plaits. Volutella, Zool. 111. ii. series, pi. 40. f. 1. 

 {fig. 86.)" Sw. p. 321. PI. xxvi. fig. 561. 



LAMPEOSCAPHA. Sw. A sub-genus of " Anodontin«," Sw. 

 thus described: — " Shell not winged, elongated, pod-shaped ; 

 teeth none ; bosses near the anterior extremity. Tropical Ame- 

 rica only ? L. ? elongata. 8w. Zool. 111. i. 176. ensiforme, S-pix. 

 Braz. Test, siliquosa. Braz. Test, pygmsea. lb," Sw. p, 381, 



LAKCEOLATE. Lengthened like a lance. 



LANISTES, Montfort, 1810. Eeversed species of Amptjl- 

 LAEIA. PL XV, fig. 319. 



LAPLTSIA, See Apltsia, 



LAPLTSIACEA. Lam. (properly Aplysiacea.) A family be- 

 longing to the first section of the order Gasteropoda, Lam. 

 containing the genera Aplysia and Dolabella, Fig. 254, 255, 



LAEVA. Humph. Part of Eisstjrella, Lam, 



LATEEAL. (Latus, a side.) The lateral teeth are those which, 

 taking their rise near the umbones, proceed to some distance 

 towards the sides of the shell ; as distinguished from the cardinal 

 teeth, which receive their fuU development close to the um- 

 bones. Lateral muscidar impressions are those which are placed 

 at a distance from each other, on the opposite sides of the 

 shell. 



LATIAXIS. Sw, A genus of " Ebuminse," Sw. corresponding 

 with the genus Trichotropis, Sow. (Sw. Malac. p. 306.) 



LATEUNCULUS. Gray. The name " Eburna" being used for 

 Ancillaria Glabrata, this is required for the genus described in 

 this book as " Eburna." 



LATIEUS. Montfort, 1810. A genus composed of a species of 

 Etjsus, Auct. which have an umbilicus and are turriculated. L. 

 polygonus, 



N 2 



