•292 TIIK VOYAGE OF H.M.S. CHALLENGER. 



Lima {Limatida) pygmcBa, Philippi. 



Lima pijffmmrt, Philippi, Wiegmanii's Aichiv f. Naturgfsch., 1845, p. 56. 



Limatida falklandica, A. Adams, Proc. Zool. Soc. Lond., 1863, p. 509. 



Radula {Limatula) pygmma, Smith, Phil. Trans. Eoy. Soc, 1879, vol. clxviii. ji. 191. 



Habitat. — Eoyal Sound and Balfour Bay, Kerguelen Island, in 28 to (jO fathoms; 

 also Prince Edward and Marion Islands, in 50 to 150 fathoms. 



This species also occurs in the South Patagonian region. 



Lima [Limatida) hidlata (Born). 



Ostrea hullata, Born, Mus. Caes. Vindobon, p. 110, pi. vi. fig. 8. 



Pecten hidlatus, Chemnitz, Conch. -Cab., vol. vii. pp. 267 and 348, pi. l.wiii. tig. 649i'/. 



Odrea inflfifa, Gmelin, Syst. Nat., p. 3321. 



Lima bidlafa, Sowerby, Thes. Conch., vol. i. p. 84, pi. xx. figs. 32, 33. 



Lima Indlaia, Sowerby, Conch. Icon., vol. xviii. pi. i. figs. 3, «, h. 



Lima strani/ei (A. Adams MSS.), Sowerby, Conch. Icon., pi. iii. fig. 15. 



Habitat.- — Port Jackson, New South Wales, in 2 to 10 fathoms; and Station 162, off 

 East Moncoeur Island, Bass Strait, in 38 fathoms (Challenger) ; Port Stephens (Jukes, in 

 Brit. Mus.) ; Moreton Bay (Mus. Cuming) ; Sorsogon, Philippines (Sowerby). 



This species varies considei'ably in shape, some specimens being narrower than others. 

 I do not see any suiRcient reason for separating the form named Lima strangei, the 

 slight obliquity noticed by Sowerby being unimportant. 



Lima (Limatida) subovata, Jeffreys. 



Lima subovata, .JeiTreys, Ann. and Mag. Nat. Hist., 1876, vol. xviii. p. 427. 

 Lima subovata, Jeffreys, Proc. Zool. Soc. Lond., 1879, p. 563, pL xlv. fig. 2. 



Habitat. — Station 78, off the Azores, in 1000 fathoms. 



For the distribution of this species see the above papers, in which the Challenger 

 specimens have already been referred to. 



Lima (Limatida) confusa, n. sp. (PI. XXIV. figs. 6-6a). 



Lima ovata, Jeifreys {nee Searles Wood), Ann. and Mag. Nat. Hist., 1876, vol xviii. p. 426. 



Testa parva, tenuis, ovata, convexa, nitida, subpellucida, liris gracillimis radiantibus 

 ad 29 instructa, striisque incrementi tenuissimis sculpta. Margines laterales per lirarum 

 extremitates leviter serrati. Umbones prominentes, paulo incurvati. 



Length 2^ mm., height 3f, diameter 2\. 



Habitat. — Station 78, off the Azores, in 1000 fathoms; Station 120, off Pernambueo, 

 Brazil, in 675 fathoms ; and Station 23, off Sombrero Island, West Indies, in 450 

 fathoms (Challenger); North Atlantic (Station 12), in 1450 fathoms ("Valorous"). 



