168 RKCOnDS OF THE AUSTRALIAN MUSEUM. 



Tlie ideiit.ity of tliis form has been enveloped in eoiil'usiuii. Lamaick 

 originally included under tlie liead of 7'. I'liDnj'itii, (lii'ee vai-ieties, "a," 

 " b " and " c ": t he sliell of " a " being paiticnlarlv dihtingni,>hed as being 

 15 centimetres long. C'henn, who then liad t-ustody of lianuirck's shells, 

 published drawings of T. i'loiKjnla (PI. ii., tigs. 1, la, Ibj. of exactly this 

 length and it therefore seems reasonable to legard these figures as repre- 

 senting the type. Because Lamarck did not clearly differentiate T. eloinjata 

 from such sj)ecies as 7'. iiM.vima, Bolten (Eucyclop. Melh.. I'l. ccxxxv., 

 tig. 1), 7'. {mhriciitu, Bolten (Savigny, Egypte, Pi. .\., tig, 1) oi- T. rlnn.j'i- 

 ttfsiniu, Biancoin (Reeve, PI. x., tig. 5), subsequent authors were led by 

 sucli loose arrangement to take various views of 7'. /■Imnjat", transfeiing 

 that name to other species and effacing the specie> itself undei' the name 

 of Trii/'C'iiii /ituccultiJK. 



According to current deterniinalions, T. elniiijiiln reache.s ninth, .south, 

 east and Avest to the utmost limits of the genus, viz. — to the Jima Islands, 

 Japan (Pilsbry, Cat. Marine Moll. Ja[>an, lb!J5, p. 18-2), Lord Howe 

 Island, South Pacific (Brazier, Mem. Austr. Mus.. ii , 1889, p. 28), 

 Mangareva, Ganibier Islands (Lamy, Bull. Mus. d'hist. nat., xii., 1906, p. 

 215) and to Suez, Red Sea (Issel, Malacologia Mar Rosso, 1869, p. 79). 



Hidi. — Monte Bello Island (Iredale), and Sunday Island, Kings 

 Sound (Basedow), Western Austialia. 



TriDACNA GK;AS, Ijiiiii''. 

 (Plate xxvii., tigs. 1-2). 



('hitum 'ji'j'if, Tjiniic, Syst. Nat., x., I75b, p. <il*l. /^/., Hanlcy, Ips. Linn. 

 CducIi., 1855, |». S5. 



'rriiliiclnirs )iii'ic, Bolten, Mus. Bolt., l?!'!-!, p. 171, for ('/niuni 'ji'jn^, 

 Chemnitz, Conch. Cab., vii., 17t^4-, pi. .\li.\,, tig. A\^\. 



'iriiliiriia ijiijidih'ii, Peri-y, Conchology, 1811, p. 2. /'/., lledley, I'roc. 

 Linn.'Soc. N.S. Wales, .\li., 1917, 'p. (k^C. 



'Vriiliii-iiii riiilis, Reeve, C'oiich. Icon., xiv., L'-^(")2, pi. w, lig. 1. hi., Soucrbv, 

 Thes. ('onch.. v., ISS-f, p. lS2, pi. ccccix.x.wiii., tigs, lo, IL />/., von 

 Martens, ZdoI. FoicIi. Scinon, lS9l, p. 94. 



Tiiil'iriiii iji'j'<^. Kent, (Ireat Bairicr Ui'cf. l^l'il, p. II. pi, x.vi.v ((iiant 

 Clam alive in silu on the Reef). /-/.. Medley, The Nautilus, .\\., 

 1902, p. 9S. hi., (ieneral Ciiide to Aineiiean Museum, litlti, p. 97. 



.['I'liniH, Ferussac, Diet, class, d'hist. nat., i., 1S22., p. l;>(i. 



Kluin, Blainville, Diet. Sci. Nat., xxiv., lb;22, p. loO. 



Meencor, Jukes, Voy. Fly, ii., 1847, p. 2b6. 



