64; 



in looking at it with tlie spire in the foreground ; spire two- 

 fifths the length of the body whorl ; whorls six, angulated to- 

 wards the upper part and slightly nodulous between the 

 varices, transversely striated, the grooves increasing in width 

 and ending in a delicate frill on the varices of the body whorl ; 

 varices with a single open projection or spine posteriorly both 

 on the spine and body whorls in a line with the nodosities ; 

 aperture ovate, but sinuating considerably posteriorly near the 

 outer lip ; canal somewhat long, not quite closed, and in most 

 specimens increasingly open towards the anterior end, which is 

 strongly recurved ; outer lip finely crenate ; inner lip smooth, 

 spreading over the columella ; colour fulvous brown, in most 

 specimens increasing to deep purple, while others again are of 

 a creamy white ; inside white ; length 3 inches, breadth l.B 

 inch. 



Distributed generally throughout South Australia. Dredged 

 at a depth of from two to ten fathoms in St. Vincent's Grulf. 



King GJ-eorge's Sound, Western Australia. 



Tasmania, where, however, the specimens are much smaller. 



A very pretty shell when in good condition. The varices^ 

 form an elegant frill nearly the whole length of the shell, 

 which is especially conspicuous on the margin of the outer lip, 

 and, in perfect specimens, the recurved canal becomes a strong 

 hook. 



M. (Pteeoij'Otus) A:N'CiASi. — Crosse {TypMs) Journal de 

 Concliyliologie, 1863, pi. 1, f. 2, M. eos, Hutton, Mamtal of New- 

 Zealand Mollusca, 1873. — This small species has the general 

 appearance of young examples of the preceding one, but the 

 varices at their juncture with the suture are xevj canaliculate 

 and much hooked backwards. In the spaces between the 

 varices are two or three small rounded close canals of varices, 

 giving the shell the appearance of a Typhis, in which genus it 

 was placed by M. Crosse. Last whorl larger than the spire ; 

 aperture small, nearly oval ; columella arcuated ; outer lip 

 large and f oliaceous ; canal slightly oblique and recurved back- 

 wards ; length 6, breadth 3 lines. 



St. Vincent's Gulf (Tate); Port Lincoln (Bednall). 



Tasmania (Atkinson). 



Port Jackson, N.S.W. (Angas). 



^ew Zealand (Hutton). 



M. (PHTLLOiN^OTrs) ocTOGOiTtrs. — Quoy and G-aimard, Voyage 

 of the Astrolabe, vol. ii. p. 531, pi. 36, f. 89. M. scalarls, A. 

 Adams, Proceedings of tlie Zoological Society, London, 1853, p. 

 71. TropTion umbilicatus, Tenison "Woods, Pro. Itoyal Soc. Tas., 

 1875. (?) 31. Brazieri, Angas, Pro. Zool. Soc, 1877, p. 171, 

 pi. 26, f. 3. Shell elongately oval, solid, spire pointed, about 

 half the length of the shell, and a trifle longer than the aper- 



