PELAGIC LIFE, FALMOUTH. 321 



On ihe 28th of March, during spring tide, I found under 

 some stones exposed at extreme low water at Trefusis point, four 

 beautiful specimens of Aucula cristata. On the following day 

 I secured several more specimens of the same species close to 

 the same place. Four of these mollusks when crawling in a 

 glass dish, measured respectively 11, 10, 9, and 11 m.m. in 

 length. 



Mr. Garstang found a single specimen of -^olis picta on a 

 floating raft belonging to the Dock company on the 27th of May. 

 Just as I was closing this report, I found another specimen of 

 this moUusk on a moored coal hulk. This nudibranch is new to 

 the district and is rare. 



On the 24th of June I dredged a single individual of 

 Trioper claviger, 21 m.m. in length. 



The beautiful nudibranch Antiopa cristata has hitherto been 

 considered a rare specimen in Cornwall. Dr. Cocks in his 

 various reports has recorded from time to time the capture of 

 single specimens of this moUusk. Mr. Garstang (5) in his 

 report records the capture of four specimens only of this species. 

 On the morning of the 6th of October I made one of my 

 periodical examinations of the sides of the coal hulks. As there 

 was but little wind, I was able to view from my boat the sides 

 of these vessels for a considerable depth. I was delighted to 

 find that in several instances there were several specimens of 

 A. cristata crawling on the sides of the hulks. I got a dozen at 

 once, and in a few days later, I had no difiiculty in securing 

 three dozen and sending them to Mr. Garstang. A short time 

 later, this species literally swarmed on the sides of the hulks, 

 and presented during calm weather a beautiful sight to the 

 observer. Three specimens of this mollusk taken at random 

 measured 49, 32, and 34 m.m. respectively in length. On one 

 occasion while collecting specimens of A. cristata to send to 

 Plymouth, I noticed a good number of what I imagined to be 

 Thecacera pennigera a few feet under water, crawling up the 

 side of one of the hulks. As these were too far down for me 

 to fish up with a landing net, I took no further trouble in the 

 matter, and naturally imagined that in a few days they would 

 crawl higher up, and then I could easily secure some. Unfor- 

 tunately the next few days were very stormy and cold, and the 



