158 "TERHA XoVA EXPEDITION. 



344. L(((/ciia Jiiiiri/inato-perfordta, Seguenza. V\. \l, figs. S. 9. 



Lmii'iiu iiKiniiiKito- perforata, Seguenza, 1879-80, FTE. p. 332, pi. xvii. fig. 31. 



Heron-Allen and Earland, 1914, etc., FKA. 1915, p. 063, pi. l, 

 figs. 24-30. 



Stations 6, 10. 11. 27. 31. 



Not infrequent in the N.Z. area, antl very typical at Station (J. Le.ss eonnnon, 

 hut typical, in the deep-water and Antarctic. At Station 10. the type is super- 

 seded bv a large and strilcmg variety characterized l)y a thick oral extremity 

 with faint costal markings which die out over the surface of the shell Init re- 

 appear at the l)ase, where there is a raised semilunar ridge runnmg concentrically 

 with the basal edge. This form also occurs at Station 11, but is less strikingly 

 developed, and is accompanied by the type. 



345. Ldf/eiia seminiformis, Schwager. 



Layena seminiformis, Schwager, 1866, FKN. p. 208, pi. v, fig. 21. 



Brady, 1854, FC. p. 478, pi. lix, figs. 28-30. 

 ,, marijinala, var. seminiformis, Millett, 1898, etc., FM. 1901, p. 620, pi. xiv, fig. 3. 



Station (). 



One rather weak specimen. 



34(3. Ldf/cna lai/eHuulcs (^Villiam.son). 



ElUosoU'nia iiiari/inata, var. lafjciiuides, Williamson, 1858, RFGB. p. 11, pi. i, figs. 25, 26. 

 Laijeua hv/eiioi<l('s, Heron-Allen and Earland, 1914, etc., FKA. 1915, p. 665. 



Stations 5, 6, 10. IG, 17. IS. 



Confined to the N.Z. area and deep watei-. A'ery raie but ly])i(al ;i( Stations 

 5, (i and 10. At Stations Ki and IS specimens are very large and heautifulh' 

 developed. At Station 16 a trigonal specimen, and a single individual of a very 

 fine delicate type. At Station 17 all are small and delicate and pass imper- 

 ceptil)ly into the var. tenuistriuta . At this Station a shigle small specimen showing 

 a raised ridge forming a horseshoe at the aboral end of the shell. 



347. L(i(/ena lagenoides, var. tenuistriuta, Brady. 



Layena tubulifera, var. (enuislriata, Brady, 1879, etc., KKt'. 1881. [>. 61. 



.. lagenoides .. „ Brady, 1884, FC. i>. 479, pi. Ix, figs. 11, 15. 10. 



Cnshman, 1910, etc., FNP. 1913, p. 39, pi. xvi, tig. 3. 



Stations 8, 10, 17, 22. 



The distribution is similar to that of the type but it does not always occur 

 at the same Stations. All the specimens are small, except at Stations 22 and 23. 

 where they are large, but are otherwise dissimilar, the markings being very coarse 

 at Station 22 and typically delicate at Station 23. At Station 10 a small 

 trigonal specimen. 



