— 159 — 
either of these species are found minus the upper whorls, there is some doubt in determining the 
species. The same remarks apply to dwarf forms of Ol. purpurea in relation to Cl. bicolor, 
Cl. gemmata and Cl. gracillima.“ (Marshall apud Sykes.) 
Defrancia reticulata var. nivea, Monterosato, in: Atti Acc. Palermo 1875 no. 1 p. 44. — 
(Homotoma) id. Enum. e Sinon. 1878 p. 46. 
Clathurella nivea, Sykes, Moll. Porcupine Exped., in: Pr. malac. Soc. London 1906 vol. 7 
no. 3 p. 187 t. 16 fig. 8. 
Von Monterosato ursprünglich als weisse Varietät von Cl. reticulata betrachtet, dann als 
eigene Art abgetrennt, was Sykes und Marshall nach dem total verschiedenen Apex bestätigt haben. 
Eine eigentliche Beschreibung existiert nicht. Ich kopiere die Figur von Sykes. 
Aufenthalt im Mittelmeer. 
Spirotropis (?) melvilli, Sykes. 
Taf. 122, Fig. 19. 
Testa parva, elongata, hyalino-alba; spira elevata. Anfractus 4 turriti, carinati, regulariter 
leniterque acerescentes, sutura distineta marginata discreti; embryonales 2 magni, laeves, albi, ceteri 
carina peripherica vel laevi vel acute nodulosa eincti, angulatim arcuato-striati, striis distinetis. Aper- 
tura latiuscula; columella basi contorta. 
Alt. 6, diam. 2,6 mm. 
Spirotropis (2) melvilli, Sykes, in: Pr. mal. Soc. London 1906 vol. VII p. 183 t. 16 fig. 6. 
„Shell small, elongate, spire well raised, varying a good deal in the relative proportions of 
length and breadth, colour hyaline white. Whorls 6, turreted, carinated, regularly but slowly in- 
ereasing; suture well marked, with a small strap-like rim below it. Protoconch large, white, smooth, 
. elevated. The remaining whorls are marked by a strong spiral keel, which is either smooth or bears 
acute nodules; lines of growth well marked; aperture fairly broad, the columella twisted at the basis.‘ 
Aufenthalt im lusitanischen Meer, von der Porcupine auf Station 17 gedrakt. Abbildung 
und Beschreibung nach Sykes. 
Zunächst mit Sp. modiolus verwandt, aber in der Skulptur verschieden. 
Spirotropis (?) megalacme, Sykes. 
Taf. 122, Fig. 17. 
Testa parva, solidula, eonico-fusiformis; spira elevata, albido-fusca summo albo. Anfractus 
6 turriti, regulariter accrescentes, apicales 1'/. laeves, sequentes confertim longitudinaliter costellati, 
inferi acute carinati, supra carinam tabulati, laeves vel arcuatim striati, infra carinam costellis nume- 
rosis acutis carinulisgue spiralibus nodoso-decussati; ultimus magnus, basi subcaudatus. Apertura 
parva in canalem strietum desinens; labrum externum supra distinete sinuatum; columella verticalis, 
basi subcontorta. 
Alt. 5, diam. 2,5 mm. 
Spirotropis (2) megalacme, Sykes, in: Pr. mal. Soc. London 1906 vol. VII p. 183 t. 16 fig. 5. 
