602 RKT. E. T500G WATSON ON THK 



British Museum, nor is it figured so far as I know. It is not 

 unlike in shape to the immature shell of M. imperialis, Swains., 

 from California ; but its snout seems to have been long and was 

 certainly narrow. It has 3, not 5 varices (which are rounded, 

 high, narrow, and continuous from whorl to whorl), with 4 (or 

 on the last segment 6) biggish rounded ribs between the varices ; 

 the old mouth-edges on the front of the varices are not like saw- 

 teeth, but smooth and continuous ; the mouth is small, oval, not 

 large ; the lip is not internally thickened ; and the surface is 

 marked with regular strong spiral threads and with fine regular 

 lines of growth, and is not squamously fine-grained. The outer 

 lip is scored with long, sharpish, but fine teeth ; the inner lip is 

 closely set with teeth, which are short and strong on the pillar, 

 feeble and a little longer on the body, with a round tubercle at 

 the very top ; there is a broad glaze on the body, which separates 

 and stands out as a strong lamina on the pillar, with a deep 

 umbilical cleft behind it. 



5. Mtjeex (Ocinebra) pholidotus, n. sp. (^oXt^wrds, scaly.) 

 Sept. 8, 1874. TJinders Passage, Cape York, Torres Straits. 

 7 fms. 



Shell. — Strongish, biconical, subsealar, with a shortish spire, 

 a small apex, and a short twisted snout. Sculpture. Longitu- 

 dinals — there are no true varices ; but there are 7 rather tumid 

 ribs, which run continuously from the apex to the snout with a 

 slight inclination to the left ; they are parted by broader furrows, 

 which are shallow and rounded : the whole surface is covered by 

 sinuous laminae which rise into vaulted scales ; these latninse are 

 about the hundredth of an inch apart, and their interstices are 

 scored with somewhat irregular vsannkles. Spirals — there are 

 strong round threads, with broader flat furrows, about 6 on the 

 penultimate and about 15 on the last whorl ; it is in crossing 

 these threads that the longitudinal laminae rise into vaulted 

 scales. Colotcr white, but the specimens are bleached. Spire 

 rather short, conical. Apea? small. Whorls about 8 ; they are 

 conical above, subcarinated about the middle, and cylindrical 

 below ; the last is slightly ventricose, with a conical contracted 

 base, produced into a short, broad, flat, reverted snout, which is 

 twisted and obliquely cut ofiF at the point. Suture slightly and 

 angularly impressed. Moiiili oval, with a small channel above 

 and pointed below, where it runs into the canal, which is short, 

 open, direct, and a little turned to the right. Outer lip patulous, 



