204 "TERRA NOVA" EXPEDITION. 



Another scene of I lie activities of the " Terra Nova" oeeurred in the waters around New 

 Zealand, especially to tlie north of North Island. About one hundred hauls were made 

 here al soundings of 0-10 in., and specimens were captured in about one fourth of these 

 and they occurred in about the same, proportion iu hauls to a depth of 50 m. In 

 thirty-three hauls in deep water in these regions specimens occurred in only three hauls. 

 In the Antarctic regions from 65 8. latitude, forty-two hauls occurred in deep water 

 and specimens were present in nearly half of these. Tow-nettings which were made in 

 holes in the ice between Cape Evans and Inaccessible Island, over soundings of deep 

 water, proved to be very fruitful in the number of individuals but poor in species. 

 Specimens were taken in about one-third of nearly fifty hauls made (in Antarctic, waters) 

 at the surface or at moderate depths (0-40 in.). 



Bouuevie (1913, p. 24) has emphasized the fact that some species frequent the 



surface and others seem to belong to the deeper layers of the ocean. Many notable 



absences in this list belong especially to the latter region and their absence in the 



Atlantic hauls is not therefore so surprising. (.'i/inlmlia />iT<>ni (\c Blaiuville, four species 



of Tlilijifin/nn and other interesting Pterota, as well as Cleodora falcata (Pfeffer) 



Pen/'-//* <lir,-rx<i, Monterosato and Limnciini /n'lico'itl<'$, Jeff., have all been found during 



the cruises of the " Michael Bars " and " Helga " to lie confined to the cold bottom water 



or the layers immediately above it (Bounevie, 1913 ; Massy, 1909, 1917). Of the present 



collection Cavolinta nn/'inata, Rang, Cavolinin i//j/c,rn (Les.), Cleodora pyramidata (L.), 



Cuvierina columiieUa (Rang), Styliola siif>nla, Q. & (I., C'/r.sr/.x- rirgula, Rang, Limacina 



retroversa (Flem.) and Pneumoderma atlanticum, Bonn, were observed in the Atlantic, and 



all except the last named two species also occurred in New Zealand waters, where their 



presence was augmented by Cavolinin longirostris, Les., Cavolinia gibbosa, Rang, 



I>/acri<t trixjiinoHti (Les.),* Cleodoni miletitn (Pfeffer), Cleodora compressa, Souleyet, 



Limnchui lielieina (Phipps), L. injluta (d'Orb.), ]j. luilhiuiiili 1 * (d'Urb.), L. bah'ti, Mb'ller, 



PITI it'li * sp. and Spongiobranchaea iin*tr<di$, d'Orl). The last-named species and 



L. /if/iflna (Phipps) shared the antarctic waters with Clioiic antarctica, E. A. Smith, and 



into these regions, L. in /hi fa, hitherto considered to be an exclusively warm water 



species, also penetrated. That this species should have been found within the Antarctic 



Circle and that (.'. um-inatu. Hang, should have been raptured so far from the equator 



as south of South Island, New Zealand, constitute two of the most remarkable features 



of the present collection. As regards the vertical range of the different species, 



( '. lutii/iroxtrix, C. t/ibbcisa, D. tnsj>humi, C. colunmt'lla, C. virgula, >'. xu/nda, 



I., bulimmdes, L. rctrovcrxa, and P. ttflttnficumwcve all found only at or near the surface. 



<'. injl'fii, <_'. iii/r/nniiliitii, < '. suli-iita, C. fniii/irfxxa and L. injlutti occurred chiefly at 



the surface and rarely at 80-100 m. L. balea was taken on three occasions at soundings 



of 20-30 m. L. lii'licina and < '. <tiitr<-tif<i, which were the only species except 



L. iiijltitti occurring in large shoals, wen 1 taken at various depths from the surface to 



* A shell of this species occurred ill a haul in the Bay of Biscay. 



