306 RECORDS OF THE AUSTRALIAN MUSEUM. 
Sculpture :—The adult shell is wound round and lengthwise, as it were, 
with sharp threads, which produce a point at intersection and enclose deep 
square meshes; the spirals are thirteen on the last whorl and four on the 
penultimate; the radials are sixteen on the last whorl. Aperture:—The 
mouth is rather wide; columella unarmed and excavate; sinus broad and 
shallow; outer lip extending a thin edge; canal a mere notch. Length 
4.mm., breadth 1:8 mm. 
Hab. Queensland :—8 fathoms, Weary Bay (type); 15 fathoms, Palm 
Island; 4 to 14 fathoms, Albany Passage; 5 fathoms, Horsey River (self); 
10 fathoms, Cape Sidmouth (Henn); 20 fathoms, off Endeavour Reef 
(McCulloch). 
PARACLATHURELLA GRACILENTA Reeve. 
Plewrotoma gracilenta Reeve, Conch. Icon., i., 1843, pl. xiv., fig. 114, and 
Proc. Zool. Soc., 1843 (1844), p. 184. Id. Smith, Proc. Zool. Soc., 
1879, p. 195, pl. xix., fig. 24, and Zool. Coll. “ Alert,” 1884, p. 39. 
Mangelia gracilenta Brazier, Proc. Linn. Soc. N.S.W., i., 1876, p. 161. Td. 
Hedley, Proc. Linn. Soc. N.S.W., xxxiv., 1909, p. 456, pl. xliv., fig. 91. 
Id. Melvill, Proc. Malac. Soc., xii., 1917, p. 170, pl. ix., fig. 12. 
Clathurella gracilenta Boettger, Nachr. Malak. Gesell., xxvii., 1895, p. 57. 
Td. Hidalgo, Revist. R. Acad. Cien. Madrid, 1., 1904, p. 341. 
Pleurotoma contracta Reeve, Conch. Icon., i., 1843, pl. xiv., fig. 116, and 
Proc. Zool. Soc., 1843 (1844), p. 185. 
Mangelia contracta Brazier, Proc. Linn. Soce., 1., 1876, p. 161. 
Plewrotoma fusoides Reeve, Conch. Icon., 1., 1846, pl. xxxvii., fig. 439, and 
Proc. Zool. Soc., 1846, p. 6. 
Plewrotoma portia Smith, Ann. Mag. Nat. Hist. (5), xiv., 1884, p. 317. 
Oythara elegantissima Melvill, Ann. Mag. Nat. Hist. (7), xii., 1903, p. 319, 
pl. xxili., fig. 13. 
Mangelia elegantissima Schepman, Siboga Exped. Monogr., xlixe., 1913, 
p. 433. 
Hab. Queensland :—32 to 36 fathoms, Arafura Sea (‘“‘ Alert”) ; 20 
fathoms, Darnley Island; 11 fathoms, Cape York (Brazier) ; 10 fathoms, 
Cape Sidmouth (Henn); 5 to 10 fathoms, Hope Island; 15 fathoms, Palm 
Island; Mapoon; off Horsey River (self). 
PspUDORHAPHITOMA boettger. 
Pseudorhaphitoma Boettger, Nachr. deut. Malak. Gesell., xxvii., 1895, p. 56, 
type Mangelia fairbunki G. and H. Nevill, Journ. Asiat. Soc. Bengal, 
xliv., 1875, pt. ii., p. 85, pl. vil., fig. 2. 
Besides his type Dr. Boettger also included in his new section Drillia 
fortilirata Smith, Clathwrella obeliscus Reeve, and Mangelia hexagonalis 
