128 PEECY SLADEN TRUST EXPEDITION. 



■ill. Pecieii rastellum. Lam. 

 Pecten rask'Umn, Lamarck, Anini. sans Vert. vi. 166; Dclcssert, Rccueil des Coquill. Lam. pi. 16. 

 fig. 3 a, h ; Sowerby, Thes. Couch., Pecten, p. 50. sp. 30. 



Var. mirificus. Reeve (sp.). 

 Pecten mirificus, Reeve, Couch. Icou., Pecten, fig. lOi. 



Loc. Amiratites: Stations Ell, 25-80 fathoms, ou hard rough ground; E 16, 

 39 fathoms, also E 21, 30 fathoms, both Lithothamnia-xuhhlo bottom. 



Oue of the most beautiful of Pectinidiie when in fine condition. The principal form in 

 the Amirantes seems to be typical rastellum. I have received this in the past from 

 the Philippines. Hidalgo*, under tbe name Chlamys rastelhitii, Lam., confirms my views 

 of the more solid and smaller mirijicus. Reeve, being but a variety. It is a species that 

 requires further study as regards both variation and limitation. 



412. 'Pecten pseudo-lima, Sowb. 



Loc. Cliagos Archipelago ; Salomon Reef. 



413. Pecten reticulutus. Reeve. 



Loc. Cargados Carajos : Station B 9, 30 fathoms. 



Amirantes : Stations E 1 and E 2, 29 fathoms, rubble ; E (i, 28 fathoms, among 



Polyzoa. 

 Seychelles : Station E 8, 34 fathoms, sandy bottom. 

 Chagos Archipelago : Diego Garcia, Lagoon, 14 fathoms. 

 Single specimens occurring in either case. Nearly allied to P. testudineus 2LX\Afit,catus, 

 both of Reeve. A Ked Sea species, extending to the Persian Gulf {Toimisend). 



414. Pecten {Vol a) sp. 



Loc. Saya de Malha Banks : Station C 1, 150 fathoms. 



Two dead flattened valves, encrusted with Serpula, &c. The longitudinal ribs are 

 bipartite in one valve, plain and undivided in the other ; otherwise tbe sculpture is 

 identical. I have compared tbem with the Australian P. bicostatus, and find some 

 similarity. 



415. Amussitim cadiicum, Sra. 



Amussium caducum, E. A. Smith, Rep. ' Challeuger' Exp. xiii. p. 309, pi. 23. figs. 1-1 c. 



Loc. Saya de Malha Banks : Station C 20, 331-500 fathoms, hard ground, with a few 

 solitai'y corals, &c. 



Two or three examples, in fine condition. The original specimens dredged during the 

 ' Challenger ' Expedition came from the west of Luzon I., Philippines, at 700 fathoms. 



Eamily LimidaB. 



416. Lima fragilis (Gmel.). 

 Loc. Coetivy I., 52 fathoms. 



Providence I. : Station D 4, 53-78 fathoms, rough coral bottom. 



* Cat. Moll. Test. Islas Philippinas, &.<i. (1904-1905) p. 379. 



