j 34 DISCOVERY REPORTS 



Pareuthria michaelseni (Strebel) 



Euthria michaelseni Strebel, 19056, p. 621, pi. 21, fig. 6a, b. 



Enthria michaelseni Melvill & Standen, 1907, p. 109. 



Euthria {Pareuthria) michaelseni Strebel, 1908, p. 28. 



Euthria {Pareuthria) michaelseni Melvill & Standen, 19 14, p. 121. 



Type locality. Smyth Channel, Strait of Magellan. 

 St. WS 71. 6 miles N 6o° E of Cape Pembroke, Lt., East Falkland Is., 51 38' S, 57 32' 30" W, 23 Feb. 1927, 



82 m. 

 St.WS8o. North-westofFalklandIs.,50°58' S, 63 39'Wto50° 55' 30" 8,63° 36'W, i4Mar. 1927, 152-156 m. 

 St. WS 88. Off Tierra del Fuego, 54 S, 65 W to 54° S, 64 55' W, 6 Apr. 1927, 118 m. 

 St. WS 97. North-west of Falkland Is., 49 S, 62 W to 49 01' S, 6i° 56' W, 18 Apr. 1927, 146-145 m. 

 St. WS 243. Between Falkland Is. and Patagonia, 51 06' S, 64 30' W, 17 July 1928, 144-141 m. 

 St. WS 804. North-west of Falkland Is., 50 22' 45" S, 62 49' W, 6 Jan. 1932, 143-150 m. 



This is a slender, finely striated shell of light chestnut colour, relieved by a narrow white peripheral 

 band on the body-whorl. 



Pareuthria paessleri (Strebel) 



Euthria paessleri Strebel, 19056, p. 625, pi. 21, fig. 9a, b. 



Type locality. Smyth Channel, Strait of Magellan. 

 St. WS 834. Near eastern entrance to Strait of Magellan, 2 Feb. 1932, 27-28 m. 



This species has a distinct submargined suture and spiral striations on the base only. 



Pareuthria scalaris (Watson) 



Fusus {Sipho) scalaris Watson, 1882, p. 377. 



Fusus {Neptunea) scalaris Watson, 1886, p. 203, pi. 12, fig. 5. 



Probuccinum scalare Thiele, 1912, p. 263. 



Type locality. 47 48' 30" S, 70 47' W, north-west Patagonia, 125 fathoms. 



St. WS 80. North-west of Falkland Is., 50 57' S, 63 37' 30" W, 14 Mar. 1927, 152-156 m. 



St. WS 237. North of Falkland Is., 46 S, 6o° 05' W, 7 July 1928, 150-256 m. 



St. WS 804. North-west of Falkland Is., 50 22' 45" S, 62 49' W, 6 Jan. 1932, 143-150 m. 



Pareuthria venustula n.sp., PI. VI, fig. 17 



Shell narrowly fusiform with a tall spire and short canal, very thin, semi-transparent, dull white and 

 without colour markings. Whorls 6|, moderately convex but slightly excavated below the suture. 

 Protoconch smooth and glossy, papillate of z\ whorls, the apex flattened, tilted and slightly immersed. 

 Post-nuclear whorls delicately and densely spirally lirate, eighteen to twenty-six lirations on the spire- 

 whorls and about fifty-two on the body-whorl. There are numerous slightly sinuous and irregularly 

 disposed axial growth lines. The neck of the canal is smooth except for weak axial growth lines. Spire 

 one and a third times height of aperture plus canal. Aperture simple without internal lirations or 

 denticles. Outer lip thin. Basal sinus broad and shallow. 



Height 13-3 mm.; diameter 5-9 mm. (holotype). 



Type locality. St. 388. Between Cape Horn and Staten I., 56 19I' S, 67 09" W, 16 April 1930, 

 121 m. (one living example and several well-preserved empty shells). 



Dentition. Fig. L, 70, p. 194. Typical, with tricuspid central and bicuspid lateral teeth. 



