254 MANGILIA. 
M. psEuDocARINATA, Reeve. PI. 20, fig. 3. 
Whorls concavely shouldered, somewhat indistinctly keeled, 
the keel rendered nodulous by the ends of close obliquely longi- 
tudinal ribs, which are short, becoming evanescent about the 
middle of the body-whorl, everywhere with close revolving 
grooves, which are somewhat nodulous; yellowish brown. 
Length, 9 mill. 
Habitat unknown (Cuming Collection). 
M. pura, Reeve. PI. 23, fig. 76. 
Spire turreted; whorls slightly, narrowly shouldered ; sutures 
rather deep; ribs narrow, reaching the sutures, revolving striz 
distant ; yellowish white, with a median row of faint brown spots 
on the back of the body-whorl. Length, 8 mill. 
S. Australia (Angas). 
M. patuipa, Reeve. Pl. 23, fig. 78. 
Whorls convex, without shoulder, with about 10-11, strong, 
flexuous ribs extending to the suture; white. Length, 8 mill. 
Isl. of Ticao, Philippines. 
M. sorpipa, Reeve. PI. 20, fig. 98. 
Whorls angulated in the middle; longitudinally obliquely 
ribbed, the ribs short, most prominent on the angle; interstices 
latticed with raised strize—which become more prominent towards 
the base of the body-whorl, where the ribs are obsolete; dull 
white. Length, 6 mill. 
Habitat unknown (Mus. Metcalfe). 
M. sEMEN, Reeve. PI. 23, fig. 86. 
Whorls with rather broad, sloping shoulders, nodulated by the 
ends of short oblique longitudinal plice, or ribs; no revolving 
striz ; chestnut-brown, the ribs lighter or whitish. 
Length, 6 mill. 
St. Nicolas, Island of Zebu, Philippines, 
under stones at low-water (Cuming). 
M. viTrEA, Reeve. PI. 23, fig. 95. 
Shell cylindrically elongated, thin, pellucid, glassy, smooth ; 
no longitudinal ribs; a few revolving grooves at the upper and 
lower part of the body-whorl, the former appearing on the spire 
also ; yellowish white. Length, 6 mill. 
Singapore, and Philippines (Cuming). 
A species having peculiar characters. 
6a 
¥! = 
