44 SUBANTARCTIC ISLANDS OF NEW ZEALAND. [Mdlliisca. 



Hah. — Auckland Islands ; Campbell Island (J. B. Mayne). 

 Throughout New Zealand, Chatham Islands, Tasmania, and Australia. 



Modiolus ater (Zelebor). 1S66. 



M/jlilus ater, Zelebor, Verhandl. Zool. Bot. Gesell. Wien, 1866, p. 914. Perna con- 

 fusa, Angas, P.Z.8., 1871, p. 21, pi. i, fig. 33. Mytilus crassus, T. -Woods, 

 P. Roy. S. Tasm., 1876 (1877), p. 157. 



Hah.^Auckhmd Islands (R. B. Waite). 



Throughout New Zealand, Chatham Islands, Tasmania, and Australia. 



Fam. LIMIDAE, d"()rl)igny. 



(lenus Lima, Bruguiere, 17i)7. 

 Distrihution. — In all seas. 



Lima angulata, Sowerbv. J 843. 



Lima aiu/ulata, Sctvverby, Thcs. Conch., i, 1843, p. 86, pi. xxii, figs. 39, 4(_) ; Conch. 

 Icon., xviii, pi. iu, fig. 13. LtJiia. husihinica, Adams and Reeve, Voy. 

 " Samarang," p. 75, pi. xxi, fig. 6. Limn, orientalis, Adams and Reeve, 

 op. cit., p. 75, pi. xxi, fig. 7. 

 Hab. — Ten miles north of Enderby Island, in 85 fathoms (E. R. Waite). 

 Also North Island of New Zealand, Australiti, Philippines, New Caledonia, 

 and Panama. 



Fam. MODIOLARCIDAE, (hay. 



Genus Modiolarca, Cray, 1847. 

 I )i si fib iifinn. — Sultantarc-tic seas. 



Modiolarca pusilla (Gould), 1850. 



Mytilus {Modiolarca) pnsiJIus. (iould, l\ Bost. 8.N.H., iii, 1850, p. 345; U.S. Kxpl. 

 Exp., xii, p. 455, atlas fig. 585. 



Shell minute, thick and solid, transversely oval, beaks nearly terminal, elevated 

 and tumid, somewhat excurved, like Isocardia ; the whole shell inflated, subcylindri- 

 cal ; dorsal and basal margins nearly parallel ; posterior end broadly rounded ; 

 anterior end vertical ; basal angle obtuse ; surface concentrically striate ; e])idermis 

 very delicate, colour pale cinereous, sometimes tinted reddish ; interior clouded 

 brown, and an intense red-brown ; hinge margin intense blood-red ; a single, obsolete, 

 apical, oblique, coaptate tooth in each valve, continued posteriorly, so as, with the 

 posterior edge, to form a ledge for the ligament, simulating sometimes an elongated 

 lateral tooth ; the apical tooth sometimes bifid (Gould). 



Length, 5 mm. ; height. 3 mm. 



Hah. — Antipodes and Auckland Islands. 



Also Otago Peninsula and Maccjuarie Island. The type is from Tierra del 

 Fuego. 



