SCALID& OF THE WEST INDIA ISLANDS. 197 
This species is very like the preceding in the contabulate whorls, but is exceed- 
ingly small; from the following species it differs in being more elongate, not per- 
forated, and having the aperture less lobed anteriorly. 
16. SCALA MICROMPHALA, Morch, n. sp. 
T. minuta, obtecte-perforata, abbreviato-turrita, alba, spira flavescente; anfr. contabulati sutura 
profunda; cost xviii in anfr. ultimo, valde reflexee, postice excavate, auriculis erectis 
postice canaliculatis paululum reflexis. Apertura circularis, columella producta lobata. 
Long. 5 mm.; diam. 3 mm.; aperture alt. 2 mm. 
Hab. Vieque (Riise); spm. unicum, 
Scalaria neglecta, Ad. and Reeve, is very like in shape. 
17. ScALA QUINDECEMCosTATA, Mérch, n sp. 
T. turrita, angusta, lactea, nitida; anfr. convexi disjuncti sed rima suturali angustissima ; cost 
regulares, acute, compressz, validze, candid, xv in anfr. ult. Apertura subovalis, antice 
obsolete angulata, labio duplice. 
Long. 8? mm.; diam. 3 mm. 
Hab. St. Thomas (A. H. Riise); spm. unicum. 
Differt a Sc. clathratula, Mtg., testa majore, anfr. disjunctis, 
18. ScALA VENOSA, Sowb., Pl. 29, fig. 9. 
T. elongato-turrita, imperforata, levis, lactea; anfr. 9 disjuncti, varicibus xi in anfr. ult., crassis, 
valde reflexis, approximatis, ad suturam subangulatis impressione torta. Apertura oblique 
ovalis. 
Long. 13 mm.; diam. 5 mm. 
Scalaria venosa, Sowb., Thes. I. p. 89, t. 33, f. 72-73. 
Var. a varicibus vix reflexis. 
Hab. St. Thomas (Swift, Krebs, Riise); Puerto Cabello, in the Lagoon (Dr. 
Prosch) ; Maracaibo (Riise); Vieque (Riise). 
Scal. modesta, C. B. Adams; Coll. Swift. 
19. ScaLa OrpianyI, Nyst. 
T. elongato-turrita, solida, alba, imperforata, sutura profundissima; costz xiy in anfr. ult. bre- 
vissimee, ad suturam angulata; apertura ovalis. 
Long. 15 mm.; diam. 6} mm. 
Scalaria elegans, D’Orb., Am. mér. p. 889, t. 54, f. 1-3 (non Risso), 
Scalaria Orbignyti, Nyst. Tabl. 1873, p. 48. 
Hab. St. Thomas (Krebs). 
50 
