42  K.L.Lamprell, J. Stanisic 
Remarks: Pitar pellucidus is very variable in shape and colour, ranging from pure white to cream, 
usually with tan-coloured zigzag patterning, while the umbones are usually tinged with brown with 2 
purple spot ventral to them. This is a widespread Indo-West Pacific, shallow-water species which has 
a relatively poor representation in the expedition material. 
Pitar (Pitarina) noguchii Habe, 1958 
(Figure 4g-h) 
Pitar (Agriopoma) noguchii Habe, 1958: 34. 
Pitar (Pitarina) noguchii Habe; Habe, 1964: pl.58, fig.6. 
Diagnosis: Shell thin, inflated, length to 20 mm. Sculpture of fine concentric ridges and irregulat 
growth pauses, with small puncture marks over surface. Colour white internally and externally: 
Similar to nipponica but differs in having a truncate posterior margin and in being more inflated. 
Material examined: Plateau des Chesterfield: (Corail 2: stn DW112, Іру, 225 m). Bancs Lansdowne- 
Fairway: (Corail 2: stn DW21, 2pv, Пу, 77 m; stn DW28, 11у). Nouvelle-Caledonie: Grand Кесїї 
Sud (Lagon: stn 375, Іру, 67-71 m); Atoll de Huon (Lagon: stn 439, 3lv, 2rv); Secteur de Thio 
(Lagon: stn 667, Іру, 33-37 m); Secteur de Canala (Lagon: stn 698, Іру, 43 m; stn 711, Іру, 56 m; 
stn 749, Іру, 49 m; stn 760, 1ру, 43 m); Secteur de Poindimie (Lagon: stn 763, Іру, 42 m; stn 771, 
Іру, 34 m; stn 773, 1ру, Irv, Пу, 48 m; stn 779, Irv, 1lv; stn 780, Іру, 33 m; stn 786, Irv, 11у; sto 
795, Іру, 31 тп; stn 814, 1lv; stn 820, Irv; stn 824, Іру, Пу, 30 m; stn 833, 2pv; stn 836, 1ру) 
Grand Recif Mengalia (Lagon: stn 840, 2rv, 21у; stn 855, Іру, 22 m; stn 856, Іру, 30 m); Secteur 4% 
Pouebo (Lagon: stn 882, 1pv, 30—40 m); Secteur des Belep (Lagon: stn 1156, 11v). 
Remarks: Hitherto only recorded from Japan; these records are a significant range extension for the 
species. 
Pitar (Pitarina) affinis (Gmelin, 1791) 
(Figure 5a-b) 
Venus affinis Gmelin, 1791: 3278. 
Cytherea inflata Sowerby, 1853: 637, fig.89; pl.133, figs 127-128. 
Pitar (Pitarina) affinis (Gmelin); Lamprell and Whitehead, 1992: sp.514. 
Diagnosis: Shell solid, length to 50 mm. Sculpture of very fine growth pauses, glossy. Colour white 
or cream with tan-brown blotches and rays centrally and towards the umbones, purple spots 
sometimes beneath umbones; sometimes markings are absent; interior cream. 
Material examined: Plateau des Chesterfield: (Corail 2: stn DWI21, Ipv, Пу, 34 m). Nouvelle: 
Caledonie: Baie de St vincent (Lagon: stn 166, Іру, 10 m); Atoll de Surprise (Lagon: stn 469, Іру, 
39 m); Secteur de Pouebo (Lagon: stn 900, Ipv, 40 m); Secteur de Koumac (Lagon: stn 921, Irv): 
Secteur de Poum (Lagon: stn 972, 1lv, Irv); Secteur des Belep (Lagon: stn 1069, Ilv; stn 1105, Іру 
Пу, 25 m; stn 1196, Irv; stn 1213, Irv). Ride des Loyaute: (Musorstom 6: stn DW433, Irv; stn 
DW436, Irv). 
Remarks: Pitar affinis is a common species in the Philippines and northern Australia. These records 
are an eastward extension of its range. 
