New Caledonian Veneridae f 
Pitar (Pitarina) healyi sp. nov. 
(Figure 3g-i) 
Etymology: Named for Dr John Healy in honour of his contribution to Australian malacology. 
Diagnosis: Shell to 17.15mm in length, 15.70mm in height and 10.85mm in width (paired valves); 
trigonally ovate, equivalve, almost equilateral, the umbones situated slightly anterior of the centre of 
the shell; inflated umbonally, moderately solid; umbones slightly oblique, curved forward; lunule 
large, cordate, raised centrally, striate, surrounded by an impressed line extending from under the 
umbones to the termination of the antero-dorsal margin; escutcheon not defined; antero-dorsal 
margin short, slightly convex, sharply sloping, rounded terminally; postero-dorsal margin slightly 
convex, sharply sloping, broadly angulate posteriorly; ventral margin widely convex; with an ill- 
defined postero-umbonal fold in each valve. Shell smooth, glossy with concentric microscopic striae 
and irregular growth lines; periostracum thin. Hinge of left valve with anterior lateral tooth strong, 
peg-like; anterior cardinal thin, acline, joined to median cardinal forming an inverted v-shaped 
socket; median cardinal solid, thick, oblique; posterior cardinal free, thin, oblique, parallel to 
ligament. Hinge of right valve with lọw anterior lateral tooth and deep socket to accommodate lateral 
tooth of left valve; anterior cardinal peg-like, narrow; median cardinal solid peg-like, wholly free; 
Posterior cardinal oblique, long, slightly bifid. Adductor muscle scars and pallial line poorly defined, 
anterior adductor scar tear-shaped. Pallial sinus moderately shallow, wide, rounded terminally. 
External colour white, unpatterned or with interrupted orange-coloured zigzag patterns over the shell 
surface, umbones tinged with orange; periostracum chalky-white; interior white. 
Material examined: Holotype: MNHN - Nouvelle-Caledonie: Secteur de Noumea (Lagon: Іру, stn 
29, 222175, 166°34'E, 24m, 23 Mar 1984). Length 17.15mm, height 15.70mm,. width (paired 
Valves) 10.85mm. 
Paratypes: MNHN — Plateau Chesterfield-Bellona (Chalcal 1: Пу 2pv, stn D20, 19°11.60'S, 
158%42.10Е, 67m). Nouvelle-Caledonie: Пе Ouen-Baie du Prony (Lagon: Irv, stn 239, 2222455, 
166°S8'E, 43m, 23 Oct 1984); Grand Recif Sud (Lagon: АМ C305576, 3pv, stn 315, 222378, 
166°53'B, 27 Nov 1984, 50m); Secteur de Yate (Lagon: Irv, stn 619, 166°54'E, 22°03'S, 27-42m; 
Іру, 2lv, stn 623, 2250175, 166°51'E, 6 Aug 1986, 32-40; Іру, stn 644, 219525, 166%4ГЕ, 48- 
45m); Secteur de Thio (Lagon: 3pv, stn 662, 21445, 166°32'Е, 8 Aug 1986, 50m; 3pv, Пу, stn 664, 
21°44's, 166°29'E, 8 Aug 1986, 28-30m); Secteur de Poindimie (Lagon: ПУ, stn 808, 20°57'S, 
165°30'E, 10 Jan 1987, 30m). 
Other material examined: Plateau des Chesterfield: (Corail 2: stn DW63, Irv, Пу; stn DW107, Ігу; 
Stn DW109, Пу; stn DW115, llv; stn DW120, Іру, Irv, 325 m; stn DW157, llv); Plateau 
Chesterfield-Bellona (Chalcal 1: stn CP7, Irv; stn D11, Ipv, 83 m; stn D22, 11ру, 68 m; stn D23, 
Irv; stn D27, 2rv, ПУ, 67 m; stn D40, Irv; stn 058, Іру, 56 m; stn D60, Іру, 45 m; stn 62, 1lv). 
ancs Lansdowne-Fairway: (Corail 2: stn DW24, 1ру, 74-75 m; stn DW27, Irv, Пу; stn DW28, 
Іру, Пу, 78 m. Chalcal 1: stn D11, Ipv, 83 m; stn D62, Пу). Nouvelle-Caledonie: Ile Ouen-Baie du 
Prony (Lagon: stn 69, 8pv, 13 m; stn 86, Ipv, 29 m; stn 92, Іру, 24 m; stn 105, Irv; stn 113, 6pv, 32 
m; stn 120, Згу, Пу; stn 131, Іру, 38 m; stn 146, 4ру, 40-52 m; stn 234, 7pv, 56 m); Secteur de 
Noumea (Lagon: stn 270, Іру, 25 m); Grand Recif Sud (Lagon: stn 301, бру, 46 m; stn 314, 3pv, 46 
m; stn 331, Пу; stn 335, 3pv, 47 m; stn 349, Ipv, 55 m; stn 376, 2pv, 75-76 m; stn 403, 2pv, 45 m; 
Stn 428, Іру, 56 m; stn 567, Іру, 51 m; stn 572, 2ру, 65 m); Lagon Nord (Lagon: stn 505, Irv, 53 
m; stn 509, Іру, 49 m; stn 517, 11У; stn 525, Irv; stn 526, Ipv, 54 m; stn 528, Пу; stn 529, Ipv, 50 
m; stn 530, 2гу, 21у; stn 533, Іру, Пу, 50 m; stn 534, 2pv, Irv, 48 m; stn 542, Іру, 50 m); Secteur 
de Yate (Lagon: stn 603, Іру, 78-80 m; stn 614, Іру, 48-50 m; stn 618, Іру, 53-58 m; stn 640, Пу; 
Secteur de Thio (Lagon: stn 652, Ilv; stn 662, Ipv, 50 m; stn 665, Irv; stn 687, Іру, 37-40 пп; stn 
92, Іру, 33-38 m; stn 695, Іру, 54-55 m); Secteur de Canala (Lagon: stn 723, Irv; stn 727, Іру, 
5-46 m; stn 728, Іру, 43-47 m); Secteur de Poindimie (Lagon: stn 801, Іру, 29 m; stn 830, 421%, 
