444 



EUCHELUS. 



E. CANCELLATUs Krauss. PL 57, figs. 1, 2, 3. 



Shell depressed, umbilicate, helicoid or almost sto?H«iia-shaped, 

 the last whorl and aperture very large, reddish-brown, marked with 

 white on the spiral ribs; spire very short, small ; wdiorls nearly 4, 

 convex, the inner 1=1 smooth, the rest with strong, separated spiral 

 lirse, the interstices wider than the lira?, rendered pitted by raised, 

 regular rib-stri?e each interliral interval with a central spiral thread. 

 There are 3 principal line on the penultimate whorl, the outer lip 

 inserted on the fourth ; on the base there are 8 concentric lirse, 

 alternately larger and smaller, the inner one bounding the umbilicus 

 and spirally entering it. Aperture large, oblique, finely sulcata, 

 pearly and iridescent inside ; lip thin ; columella arcuate, not toothed, 

 a trifle reflexed above, connected with the upper lip by a short, 

 shining, white callus. Umbilicus narrow, funnel-shaped. 



Alt. 10, diam. 13 mill. 



Cape of Good Hope. 



Stomatellaf cancellata Krauss, DieSiidaf Moll., p. 93, t. 5, £ 26, 

 1848. 



The edentulous aperture, large body-whorl, small, low spire and 

 latticed sculpture separate this from all species except those im- 

 mediately following. The shell is very aberrant for an Euchelus. 



E. FossuLATUs Souverbie. PI. 38, figs. 15, 16. 



Shell umbilicate, heliciform, whitish, spotted with pale reddish ; 

 whorls 5, convex, separated by canaliculate sutures, all over regularly 

 clathrate, penultimate whorl with 4 spiral cinguli, a minute riblet 

 interposed in each interval ; the pits between the longitudinal and 

 spiral riblets oblong, quadrilateral ; last whorl convex beneath, with 

 close radiating lamellae ; aperture ovate, sulcate inside ; lip thin, 

 plicate ; columella arcuate, edentulous, a little reflexed above ; um- 

 bilical tract white, striate ; umbilicus profound. 



Alt. 12^ diam. 15 mill. ; alt. 9, diam. 10 mill. (Fischer.) 



Andaman Is. (NevlU) ; New Caledonian Archipelago (Montr.). 



Tr. (Euchelus fossidatus Souv., Journ. de Conchyl. 1875, p. 39, t. 

 4, f. 5.— Fischer, ibid., p. 50 ; Coq. Viv., p. 391, t. 117, f 2. 



Very similar to E. cancellatus Kr-auss, but with slightly more 

 prominent spire. 



E. MYSTicus Pilsbry. PI. 57, fig. 7. 



Shell globose-depressed, yellowish-white, with purple-broAvu dots 

 on the spiral ril)s, spire very short, conic ; imperforate ; whorls 4? or 



