i88 
The Irish Naturalist. Angust-Septomber. 
the rhinophores, the long labial tentacles, and the papillae 
being kept in constant, rapid, serpentnie motion. The 
papillae when thrown off or detached from the body of the 
animal retain their vitality for a long time. In one instance 
a papilla thrown off at 12 noon on the 25th July, 1908, 
continued, without external stimulus, to make automatic 
vital motions up to 8-30 on the following morning, or for 
a period of 2oi- hours. When another detached papilla 
of the same species was cut into two parts the upper part 
continued for 21 hours to manifest automatic motions 
similar to those effected by the detached but undivided 
papilla. For a gastropod, this animal is quite a rapid 
climber and craw^ler. A specimen which had suspended 
itself by a slime thread 2 inches below the water surface 
was seen to remount to the surface in one minute by climbing 
the thread, and, crawling up the side of a glass tube, it 
covered one inch in 13 seconds {Colgan, '09A). 
A spawn coil of this species laid in captivity, somewhat 
in the form of the Grecian key pattern as shown in Han- 
cock's plate in the Monograph, was found to measure 7 
inches (175 mm.) in length by barely i millimetre in width 
when stretched taut. The number of teeth in the radulae of 
3 well grown Dublin specimens dissected was found to range 
from 13 to 16 ; the otocysts contained very numerous (from 
75 to 100) otoliths of two forms, about a dozen large and 
ovate, the remainder round and hardly one-third the size. 
F. coronata (Forbes and Goodsir). 
Eolis coronata. 
Not infrequent within tide marks. " Found to be 
common at Malahide by Mr. Alder and Dr. Farran " : 
Thompson, '44. Several specimens on Halidrys siliquosa, at 
Rush: Duerden,^()4. One specimen, Lambay : Colgan, '07. 
Under stones at Lough Shinny, at Shennicks Island, and at 
Red Island, Skerries, eleven specimens taken, 1906-11 : N.C. 
Antiopa cristata (Delia Chiajc). 
In dredgings, rare. One in 10 f. off Bullock, September, 
1906 : Colgan, '07A. Three in 9 f., Dalkey Sound, 1908 : 
Colgan, '09. One in 2 f. Malahide River, September, igii. 
