176 MARIE V. LEBOUR. 
are common in the middle of the month, copepod nauplii are common 
and Balanus nauplii very commen in the beginning, the cypris stages 
being commoner in the middle of the month when they abound. 
Chief forms—Skeletonema costatum, Rhizosolani Shrubsolez, Stolterfothi 
and hebetata f. semespina, Mastigloia sp., Thalassiosira gravida, Lauderva 
borealis, Chetoceras curvisetum, Pheeocystis Pouchetir, Phialidiwm hemi- 
sphericum, Obelia sp., Calanus finmarchicus, Temora longicornis, Acartra 
Clausi, Pseudocalanus elongatus, Portunus sp., zoe and Balanus naupli 
and cypris stages. 
June. 
Prevailing winds N., 8. at end of month. Weather mostly cold and 
dull. 
Cerataulina Bergoni fairly common at the beginning, Chetoceras 
dwindles but C. curvisetum and pseudocrinitum are still common at the 
beginning and an undetermined species is common through the month 
particularly in the tow nets. Leptocylindrus danicus is fairly common and 
Mastigloia is occasionally present in large numbers. Nitzschia deli- 
catissima is very common till the middle of the month and falls off 
towards the end. Paralia is rare, Rhizosolenia species very common, 
k. Shrubsolec and Stolterfothi very common through the month, &. 
hebetata f. senuspina very common towards the end, R. alata gradually 
increasing, to be very common in the middle and continuing so till the 
end of the month. Skeletonema not common. Thalassiosira gravida rare. 
Maximum of the Peridiniales. Amphidiniwm crassum begins, Ceratium 
fusus fairly common, Dinophysis species, Diplopsalis pillula, Gleno- 
dinium bipes, Gymnodinium rhomboides, Pouchetia armata, Spirodinum 
spirale and glaucumallatamaximum. Variousspecies of Peridinium fairly 
abundant. Various Infusoria occur, although never in large numbers. 
Pheocystis very common till the middle of the month when it disappears. 
Meduse abound, especially Phealidium and Obelia. On the 14th 
Saphenia gracilis was very abundant, and with it a large number of 
Bolina infundibulum. The day was cold and dull with a north wind. On 
the same day Sprredinium glaucum and Dinophysis acuninata were at a 
maximum. The larva of Peachia sp. (Halcampa) was very common on. 
medusee. Sugitta rare. 
Copepods not very abundant, Calanus, Temora and Acartia common. 
Pseudocalanus very rare, Portunus sp. zoea very common, Megalopa stages 
fairly common, larvee of Hippolyte and Porcellana very common on the 
21st. Copepod nauplii not so common, Balanus cypris stage disappears 
after the beginning of the month. <Anaphia petiolata and larval Gastero- 
poda common at the end of the month. 
