ii':i "■|'I':i!i;a N(jva- kximodition. 



Fam. LINEID.E. 



Sub-Fam. LINETNiE. 



fjiiK'its. Sdwcrliw IS()(). 



(i. Liitctis nirj'iii/ii/its. Mint. (Toxt-tig.s. .■5-4.) 



LItims curnKjdtiiy, INl'Iutosli, 1S76, pp. 3l!2-32;?. M'liitdsli, 1S7'.), p. iTiii ; HI. XV, iig.s. 17, 



18. Studer, 1S79, p. 123. Biirger, 1904 (I), pp. L»(;-U7. Joubiii, I'.IK), pji. 2-8; 



Text-figs. 1-10 ; PI. I, figs. 1-5. 

 Cerehratiih(>< mrnuiatux. Hubreeht, 1887, pp. 41-43 ; PI. I, fig. 17 ; PI. XI, fig. 'J ; PL XII, 



figs. 3, 4 ; PL XIII, figs. 1-6 ; PI. XIV, figs. 2-4. Joubin, 1908, p. (J. 

 1 Cerehrafiiliis rharcnii, Joubin, 1905 (1), pp. 315-318, and text-figure. Juuliiii, 1905 (2), 



p. 432. Jdubiii, 1908, pp. 2-6 ; Fig. 1. 

 Linens hauKi-ni, Joubin, 1910, pp. 8-9 : Fig. 11, 

 Enpolia jjunnciti, Joubin, 1910, pp. 9-10 ; Figs, 1;'>, 14. 



Stutioii.s 220, 294, ;;i(i, Wil, 338, 339, 340, 35G : 45-250 fathuins ; Station 

 324, McMurdo Sound, on shore. 



Tliis tine species forms the liulk of the present collection, having l)eeu captured at 

 nearh' all the dredging stations in the Eoss 8ea and McMurdo Sound, where it is 

 evidently very abundant. 



The l)est account of this form is still that of Hul)reckt (1887) in the report on the 

 " Challenger " collection. His descrijjtiou and figures of the histological details of the 

 l)ody-wall iu ^JHrticular are most accurate and complete. 



The original description of the species l)y M'lntosh (1876) is very Itrief. and may 

 lie (juotcd liere in full : — 



■■ Bod}' (in spirit) flattened, rathei' aliruptlv pointed anteriorly, and more gradually 

 posteriorly. The oesophageal region is marked externally liy a series of prominent 

 and somewhat regular rugjB, wliich sweep from the nioutli dorsally and ventrally ; so 

 that the dorsal view recalls that observed in Ai'inn nfer. 



"Colour dark olive tlu'oughout, with the exception of a white l)and, wliicli crosses 

 the anterior border of the snout, and passes backward to the ^wsterior tliird of the 

 lateral fissure, where it liends dorsally and terminates. 



'■ The special characters are the very large mouth, with the prominent rugae, 

 wliicli show that the animal probably possesses unusual j^owers of oesophageal 

 protrusion — a suppo.sition borne out by the great development of the external circular 

 muscular fibres and the succeeding longitudinal coat of tlie organ. The internal 

 glandular lining is also very firm. The outer layers of the prol)oscis correspond with 

 the tyi)e in the Lineidas ; Imt the internal longitudinal layer is largely developed." 



In size the specimens in the present collection vary very greatly; the smallest 

 of the young individuals measure about 6 cm. in length, and are geuerallv coiled 

 ventrally in a spiral when in spirit. The largest specimen is 65 cm. in length ; 

 this example was found "washed up on Hut beach. Feb. 28th, 1911," and is in a 



