31 



26. S. H;emastoma. (pi. vii. f. 51.) Nobis. 



T. ovali, striata, longitudinaliter plicata; apertura rosea, striata; 

 labio externo sinu valido. 



A small white striated species, with longitudinal ribs and a 

 purplish pink striated aperture. Specimens are contained in the 

 collections of Mr. Norris, Mr. Stainforth and Miss Saul. 



27. S. Gibbebulus. (pi. vi. f. 18, 19, 24, 25, 26.) Gmel. 3514. 

 T. ovali, medio laevigata, antice striata; anfractibus inaequaliter 



gibbosis, ultimo ad dorsum complanato; spira brevi; labio externo 

 postice valide lobato, sinuato ; sinu antico valido. 



The whorls are unequally gibbous at the upper angle. 



The varieties are, pale brown, mottled with zigzag lines of 

 brown ; white, with spotted brown bands ; the same with a purple 

 streak on the columellar lip and on the inner surface of the outer 

 lip ; and nearly white, with pink aperture. 



East Indies and Moluccas. 



28. S. fusiformis (pi. ix. f. 91, 92.) Nobis. 



T. fusiformi, laevi, an f ice subtruncata ; spira conica, anfractibus 

 prope suturam uni-sulcatis ; ultimo ad marginem striato, dorso sub- 

 gibboso ; apertura angustata ; labiis intus striatis postice in canalem 

 spirae partem decurrentem attenuatis ; externo oblique truncato ; 

 sinu antico parvo. 



The colour of this species is of a pinkish or purplish white, 

 mottled and banded with brown, the lips of the aperture are buff. 

 The aperture is peculiar in form, the lips being attenuated into a 

 canal which is bent forwards on the penultimate whorl of the spire, 

 and the outer lip obliquely truncated at the base This character 

 connects S. fusiformis with the following species. Messrs. Norris, 

 Stainforth and Cuming possess specimens. 



29. S. dentatus. (pi. ix. f. 86, 87.) Gmel. p. 3519. and den- 

 tatus Wood. S. tridentatus Lam. 



T. oblonga, laevi, antice striata, truncata ; spira breviuscula ; an- 

 fractibus plicatis, convexiusculis ; apertura postice in canalem 

 brevem angustata, antice effusa; labio interno angusto paululum 

 incrassato, postice striato; externo brevi, striato, antice quinque- 

 fariam dentato, effuso, oblique truncato. 



The shortness of the outer lip, its anterior tooth-like lobes and 

 its truncated character distinguish this species so that it might 

 almost stand alone as a genus. The colour is yellowish white in- 

 clining to pink or purple at the apex, ornamented by waved spots 

 of brown. The striae on the inside of the outer lip are interlined 

 with dark brown. 



30. S. terebellatus. (pi. ix. f. 84, 85.) 



T. elongata, laevi, spira brevi; anfractu ultimo antice oblique 

 truncato ; apertura interne striata ; labio externo vix expanso, pau- 

 lulum incrassato; sinu antico indistincto, sub-dentato. 



A narrow, elongated smooth species, shaped like a Terebellum 

 with the last whorl truncated. The colour varies from pale yellow, 



