PELAGIC LIFE, FALMOUXH. 47 



3-m.m. in diameter. Mr. Garstang^^' records the capture of this 

 species at Plymouth, and Prof. Forbes secured it on the coast 

 of Cornwall during 1846. I think the species is rare, for I have 

 not met with any more individuals before or since. 



July. On the 1st, after some very unsettled weather, I started 

 at 4 a.m. to make some surface-net gatherings in the bay. The 

 first gathering was made across the rising tide from near the 

 Black-rock to the Lighthouse. In this gathering Sarsia prolifera 

 and Oyphonantes occurred in abundance, a fair number of the 

 medusiform stage of Obelia gelatinosa were also present. 

 Copepods were very sparingly present, but the larvse of various 

 species of decapod Crustacea were fairly numerous. The next 

 gathering was made one and a half miles south-east of the 

 lighthouse at 5.30 a.m., with the following results : Centropages 

 typicus, Clausia elongata, and Dias longiremus were fairly 

 numerous, but only a few of the preceding forms were observed. 



On the 19th, in the gathering made three feet from the 

 bottom in the main channel in the harbour, Corycaeus anglicus, 

 Muggioea atlantica, Evadne nordmanii, and Podon intermedins 

 were noticed ; a few dead specimens of Acantrometra elastica 

 were also observed. On the 25th, examples of Corycseus 

 anglicus and Podon intermedins were captured in the surface-net. 

 The surface temperature of the sea on that morning was 60-9 P. 

 On the 30th, large numbers of Corycseus anglicus covered with 

 the frustules of a species of diatom, which I have been unable 

 to identify, occurred in the bottom tow-net. Dr. Murray'^' 

 records a similar instance in the surface-net gathering made near 

 Hawaii, but does not mention to what species of copepod these 

 diatoms were attached. I have, on several occasions during the 

 winter months of previous years, detected examples of the same 

 diatom attached to the various appendages of Clausia elongata ; 

 but in those cases the diatoms were hard to view, owing to their 

 being so few in number and not covering the individual " like 

 quills upon the fretful porcupine " as in the present instance. 



August. On the 2nd, an example of Corycseus anglicus with 

 ova attached was secured in the surface-net. On the 7 th, Evadne 

 nordmanii and Podon intermedins occurred in profusion in a 

 surface-net gathering made three miles south-east of the 



