308 PELAGIC LIFE, FALMOUTH. 



structure. On tlie 25th, the only form of interest taken was a 

 single male of Pontellia wollastonii. On the 26th, after strong 

 winds from the west south-west, the tide being three-quarters 

 flood, and surface temperature 57°9 F, I collected a fair quantity 

 of a species of Siphonophore quite new to me. On the 17th of 

 October following, my friend Mr. Cunningham wrote to me as 

 follows: — " Do you know I have been taking immense numbers 

 of Siphonophores in the tow-net for the last month or so ? 

 They have only one swimming bell or nectocalyx, and belong to 

 the genus Muggiacea." Later, Mr. Cunningham published (2) 

 a short paper with two figures of this Siphonophore, and named 

 it Muggioea atlantica. On comparing my sketches with his 

 illustrations, I have no hesitation in stating that our specimens 

 are identical. 



October. The surface temperature of the sea on the 2nd 

 was 57°6F, and on the 21st SS^F. On the 8th numerous speci- 

 mens of the Pteropod were again secured in the surface-net, and 

 with them a fair quantity of Tintinnus ampulla occurred. On 

 the 20th, the wind was fresh from the south-west, and tide one 

 hour on ebb, when the surface-net was worked, the temperature 

 being on that occasion 55°F. I found in the collection, in 

 addition to the usual forms, a number of Ceratium tripos, and 

 with them a single specimen of a species of Radiolarian. I have 

 tried to name this single specimen, but my attempts have so far 

 been unsuccessful. This is the only occasion I have ever 

 secured a specimen of Eadiolarian in my tow-net during my 

 residence in Cornwall. 



November. During the early part of this month we had 

 gales of wind from the south-east and east, and it was not until 

 the 5th that I was able to venture out in my boat surface- 

 netting. The surface temperature on that day was 50° F. The 

 only forms of interest captured on that occasion were quantities 

 of Sagitta and Corycceus anglicus. From the 6th to nearly the 

 end of the month, I was unable to do any surface-netting, owing 

 to an attack of Influenza. On the 30th, when I resumed my 

 investigations, I found the surface temperature had fallen to 

 46°F. An examination of the gathering made on that day, 

 shewed that Evadne and Podon had vanished from the surface 

 for a time. On the other hand, Sagitta occurred in profusion. 



