79 Part III. — Twenty-seventh Annual Report 



Two hauls from 45 and 60 fathoms contained only a few Calanus and 

 Euchaita and one or two Nyctiphanes. A third haul from near the bottom 

 yielded a few demersal Copepods and one or two specimens of a small 

 Isopod (Pseudotanais forcipatus). 



April. — The gatherings collected in April were also small. Vertical 

 hauls from 15, 30, 45, and 68 fathoms measured altogether only about 

 2 or 3 c.c.'s of pelagic Crustacea, consisting chiefly of Calanus, but a few 

 other Copepoda were also sparingly represented. A horizontal mid- water 

 gathering gave rather better results, though at the same time showing 

 that pelagic Crustacea were still scarce. 



May. — Vertical hauls from 15, 30, 45, 60, and 75 fathoms were collected 

 in May, and showed a moderate increase in the number of pelagic Crus- 

 tacea over the April gatherings. They were distributed as follows : — 2*25 

 c.c.'s from 15 fathoms, 4*5 c.c.'s from 30 fathoms, 4 c.c.'s from 45 fathoms, 

 8 c.c.'s from 60 fathoms, and the same from 70 fathoms. Horizontal 

 hauls were also collected — one at the surface, one near the bottom, and a 

 mid-water haul. The surface gathering measured 5 c.c.'s, that from mid- 

 water 3*5, and that from the bottom 23"5 c.c.'s. The contents of the 

 various hauls consisted for the most part of Calanus, but some other 

 species were also represented by a fair number of specimens, i.e., Acartia 

 clausi, Anomalocera pater soni, Centropages hamatus, Pseudocalanus elon- 

 gatus and Temora longtcornis. A few Euchaita were observed in one 

 of the bottom gatherings. Oikopleura were also occasionally noticed and 

 were moderately common in the vertical haul from 30 fathoms. 



August. — Vertical hauls from 15, 30, 45, and 60 fathoms were collected 

 in August. The first two measured respectively 1 and 2 c.c.'s, and the others 

 8 and 12*5 c.c.'s. These gatherings consisted chiefly of Calanus, but a 

 few other common forms, including Euchaita and Sagitta, were also 

 present. 



1906. 



June. — Vertical hauls from 15, 30, 45, and 62 fathoms collected in 

 June measured respectively 7, 5*5, 7, and 10*5 c.c.'s. The contents con- 

 sisted almost entirely of Calanus, the only other species noticed, and which 

 were only sparingly represented, being Pseudocalanus elongatus, Metridia 

 lucens, and Acartia clausi, and a few Sagitta. 



August. — The gatherings collected in August from 15, 30, 45, 60, and 

 75 fathoms measured respectively 1, 3*5, 20, 37, and 30 c.c.'s. In the 

 gatherings from 15 and 30 fathoms, Calanus was less plentiful than in the 

 others, while Pseudocalanus, on the other hand, formed nearly 70 per cent, 

 of the catch. Centropages hamatus and Parapontella brevicornis were also 

 observed in this sample. The other gatherings consisted almost entirely 

 of Calanus, with a few Euchaita and Rhoda raschi. 



September. — The series of gatherings collected in September was similar 

 to that for August, but the catches were much smaller ; those from 15 

 and 30 fathoms measured less than 1 c.c. each. A gathering from 50 

 fathoms measured 1*5 c.c's, while other two from 60 and 75 fathoms 

 measured 2*5 and 20 c.c.'s respectively. These gatherings consisted 

 almost entirely of Calanus, but a few Euchceta and Rhoda raschi occurred 

 in those from 60 and 75 fathoms. 



October. — The gatherings collected in October .'mowed pelagic Crustacea 

 to be still scarce at this station except near the bottom. Hauls taken at 

 30 and 45 fathoms measured less than 1 c.c, and consisted of a small 

 number of Calanus, Pseudocalanus, Acartia clausi, and Sagitta, while two 

 others taken at 60 and 75 fathoms measured respectively 3*5 anc 1 23 c.c.'s, 

 and contained, in addition to the usual Copepoda, a number of Schizopods 

 (including Rhoda raschi and Nyctiphanes norvegicus) and Sagitta. 



