PORIFERA OF THE L.M.B.C. DISTRICT. 199 
tans, Ruspailia rigida, Leucandra nivea, Sycandra ciliata, 
and Sycandra compressa. 
A great number of very fine specimens were collected 
again at Hilbre Island on March 21st, 1890, although this 
species had not been seen there for several years. 
Renera ingalli, Bowerbank. 
Tsodictya ingalli, Bowerb., Brit. Spong., vol. iii., p. 241, pl. Ixxviii. 
Bowerbank gave his description from three dried speci- 
mens which had been sent to him from Southport. The 
one specimen, which I found im a tidal pool at Port Erin, 
April, 1890, has quite the appearance of that figured by 
Bowerbank, although it 1s only about one-half the length. 
Its colour, when alive, and also after having been kept in 
spiit, is a brownish-yellow. It is hard and stony to the 
touch. The spicules are shghtly curved, and rather bluntly 
poimted oxea, measuring 0°15 by 0°009 mm. They are 
held together by a rather large amount of ceratose, and 
form somewhat irregular meshes, which may be unispicu- 
lar or bispicular. The width of the oscula varies from 
1 to 2 mm. 
Chalina gracilenta, Bowerbank. 
This species is new to our district and was first described 
by Bowerbank,* who collected it at Torbay, Scarborough, 
coast of Northumberland, and Hastings. Oscar Schmidt t 
seemed to have some doubts about its systematic position 
or even its existence, but I am able to confirm Bower- 
bank’s statements in regard to both points. 
I found one specimen of Chalina gracilenta at the north- 
east end of Puffin Island, April, 1889, in one of the tidal 
pools, where it was attached to Corallina officinalis. It 
formed an encrusting mass of oval shape, 11 mm. by 5mm., 
of yellowish-grey colour. 
* Bowerbank, ‘‘ British Spongiade,” vol. ii., p. 372, and vol. iii. p, 171. 
+ Oscar Schmidt, ‘‘ Spongienfauna des Atlantischen Gebietes,” p. 77. 
