202 A DESCRIPTIVE CATALOGUE OF THE 



30. SCALA TURRITELLULA, Morcll, n. sp. 



T. minuta, imperforata, turrita, gracilis, spiraliter expresse lirata; anfr. convexi, sutura con- 

 strica; anfr. primi Isevigati; costse lineares circ. xxv in anfr. ult., ad suturam expansse. 

 Apertura ovalis pariete crasso, antice producta. 

 Long. 6 mm. ; diam. 2 mm. 



Hab. St. Martin (Lilienskiold, Krebs). 



Var. a. Riisei. T. turrita, gracilis, spiraliter dense lirata ; anfr. rotundati, 

 contabulati, sutura constricta profundissima ; nucleus (anfr. primi 4) 

 Iffivigatus fuscus, nutans (casul); costse expressse, angustse, ad suturam 

 angulatse 25 in anfr. ult, hue illuc anguliferse. Apertura ovalis, peri- 

 tremate ad suturam et basin angulato. 



Long. 6| mm.; diam. 2 mm.; spm. minus long. 4 mm.; diam. 1| mm. 



Hah. St. Thomas (Riise); Porto Plata (Krebs). 



31. ScALA iEosPiLA, Morch, n. sp. 



T. obtecte perforata, turrita, albida, politissima, maculis ferrugineis, striis spiralibus distantissi- 

 mis obsoletissimis ; stride incrementi distinctse ; anfr. convexi sutura impressa; costae x in 

 anfr. ult., lineares, ult. 2 crassiores. Apertura ovata obliqua. Color cinereo-albus, maculis 

 ferrugineis rotundis vel oblic^uis in duplice serie digestis in anfr. spirse et in triplice serie in 

 anfr. ult. 

 Long. 14^ mm.; diam. 6 mm. 



Hah. St. Croix (Ovesen) ; St. Thomas, spm. maculis obliquis Hornbeck (coll. 



C, M. Poulsen). 



The reddish spots are arranged so that one pair belongs to each rib. The 

 polished surface is very notable. Scala nova-anglice. Couth, seems, according to 

 the figure, to be most allied to it. 



32. Scala Nautl^, Morch, n. sp., PI. 29, fig. 12. 



T. subulata, imperforata ; anfr. convexi circiter 8, sutura subimpressa ; costse xii in anfr. ult., ad 

 suturam angulatim reflexse, lineares ; ult. 2 crassiores. Apertura ovalis. Color lilacinus 

 anfr. ult. et penult, medio ferruginei, costse et sutura albse. 

 Long. 12^ mm. ; diam. 3| mm. 



Hah. ad litus mexicanum inter Vera Crux et Nautla (Rathsack, 1842). 



