156 60 
Distribution: — Maldive Archip. (Epc. Suir). — Nukahiva, Marquesas Isl. 
(REEVE). 
P. sugillatus, Reeve, is closely allied to the present species. 
Note. Pecten hybridus, Gmel. (P. squamosus, Gmel.), was taken by the Danish 
¢xpedition at Singapore in 2—8 fathoms, on coral-reefs. 
Pecten (Pallium) plica L. 
Ostrea plica, Linnté, Systema Nat., ed. X, 1758, p. 697, No. 162. — ed. XII, p. 1145, No. 192. — Mus. 
Ludov. Ulr. Reg., p. 526, No. 106. 
Pecten — - Reeve, Conchol. icon., VIII, Pecten, Sp. 16. 
_ — Marrini u. CHEMNITZ, Conchyl. Cabin., VII, 2 Abth., pp. 53 and 96, pl. 14, figs. 3—4; 
pl. 26, fig. 4. 
—  plicatus, CHEMNitz, Conchyl. Cabin., VII, p. 292, pl. 62, fig. 598. 
E. of Cape Liant, 9 fathoms, shells (1). S. of Koh Chuen, 30 fathoms, shells (2). 
Long. 41—42 mm., alt. 44—46 mm. 
Distribution: — Nicobars, Ceylon and Gulf of Manaar, Persian Gulf, Gulf 
of Oman, Maldive Archip., Gulf of Aden, Red Sea and Gulf of Suez. — China Sea, 
Japan (Nagasaki). 
Pecten subplicatus, Sow. 
Pecten subplicalus, Sowrrsy, Thesaurus Conch., I, 1842, p. 64, pl. 13, fig.37; pl. 14, figs. 72, 73 and 81. 
— _— Reeve, Conchol. icon., VII, Pecten, Sp. 17. 
= = — Martini u. CHEMNITZ, Conchyl. Cabin., p. 157, pl. 44, figs. 3—5. 
Koh Kram, 30 fathoms (1). North side of Koh Mesan, 10—15 fathoms, stones (1) 
1 mile south of Koh Chuen, 30 fathoms, shells (/2). Koh Kahdat, 1 fathom, sand (1/:) 
Between Koh Kut and Koh Kahdat, 10 fathoms, shells ('/z). N. of Koh Kut, 15 
fathoms, mud (1/2). 
Long. 15—30 mm., alt. 15—33 mm. 
Distribution: — Gulf of Aden. — South Japan, Philippines, Moluccas, Celebes. 
Pecten velutinus, Sow., in my opinion is identical with the present species. ' 
Pecten fulvicostatus, A. Adams & Reeve. 
Pecten fulvicostalus, A. ApAMS & Rerve, Mollusca of the voyage of H. M. S. Samarang, 1848, p. 74, pl. 21, 
fig. 11. 
= = — Reeve, Conchol. icon., VIII, Pecten, Sp. 123. 
= Martini u. CHemnitz, Conchyl. Cabin., VII, 2 Abth., p, 226, pl. 60, 
fig. 6 
- Dringi, Reeve, Conchol. icon., VIII, 1853, Pecten, Sp. 152. 
_ -  Manrrini u. Coemnrrz, Conchyl. Cabin., VI, 2 Abth., p. 207, pl.55, figs. 7—8. 
—  luculenta, Rerve, Conchol. icon., VIII, 18538, Pecten, Sp. 59. ? 
— luculentus, - Martini u. CHEMNITZ, Conchyl. Cabin., VII, 2 Abth., p. 170, pl. 47, fig. 3. 
1 Kisrer has expressed the same opinion in his Monograph of Pecfen in Martini & CHEMNITZ, 
locicitaspug Os 
2 A. H. Cooke, Ann. and Mag. Nat. Hist., Ser. 5, vol. 17, p. 1384. — Bavay, Bull. du Muséum d'Hist. 
Nat. Paris, 1904, p. 366. 
. 
