331 



of Neptune Islands, with 9 good and 24 poor ; also in 40 

 fathoms off Beachport, 3 fresh : in 90 fathoms off Cape Jaffa, 

 1 good, 3 poor; in 110 fathoms off Beachport, 1 good, 1 poor; 

 in 130 fathoms off Cape Jaffa, 3 moderate. 



When fresh there is a walniit-coloured band over the 

 middle third of the body-whorl, less extensive in the inter- 

 costal spaces. This appears above the suture in the spire- 

 whorls ; the costae are dotted above, and there are curved 

 axial lines of dots on the lirae at the base. The size may 

 reach to — Length, 73 mm. ; of the body-whorl, 36 mm. : 

 breadth, 3 mm. The ribs in the longer form may be much 

 narrower, and may be obsolete before reaching the body- 

 whorl. 



This species approaches very close to Mangilia, and may 

 belong to that genus. 



Mitromorpha paula, n. sp, PI. xxviii., fig. 5. 



Shell, minute, solid, of 4^ whorls, including a blunt pro- 

 toconch of 2 whorls, which are convex and apparently smooth, 

 but microscopically granular, separated by a linear suture ; 

 it ends abruptly, and from within it issue the spirals of the 

 first spire- whorls. Perfect specimens show the granules in 

 very close-set spiral rows. Spire-whorls slightly convex, with 

 eight spiral lirae. Sutures simple. Body- whorl large, taper- 

 ing anteriorly. Aperture elongate-oval, rather widely open 

 in front ; outer lip simple, crenulated outside by the sculp- 

 ture, slightly convex in profile, with a minute round, shallow 

 sinus close to the suture ; inner lip is a complete narrow 

 glaze; there are twenty-three spiral lirae, flat-topped, half 

 as wide as the interspaces, axially faintly incised. Colour is 

 cinnamon-brown, lighter in a band on the prominence of the 

 whorls. 



Dim. — Length, 3 mm.; of the body-whorl, 2'1 mm.; 

 breadth, 135 mm. A second example is 3'8 mm. by 15 mm. 



Locality. — Type from Gxilf St. Vincent, depth unre- 

 corded, with 70 others in good and moderate condition : in 22 

 fathoms Backstairs Passage, 4 alive, 5 dead. 



It is not unlike Pleurotnmn (TlieKhia ) eritima, Watson, 

 Chall. Reps. Zool., 1886, vol. xv., p. 329, pi. xxiii., fig. 2, 

 but is larger and has spirals half, instead of twice, as wide 

 ^s the grooves. 



Var. leuca, n. var. 



This is quite white, and is generally rather narrower 

 than the type of pmda. 



Dredged in 20 fathoms Investigator Strait, 1 good ; in 

 45 fathoms north of Neptune Islands, 1 good ; in 49 fathoms 



