171 



PLATE LXVII. 



Chahna cERVicoBNis, Boiverbaitl,:. 



Vol. ii, p. 364, ' Mon. Brit, Spongiadae.' 



Pig. 1. — Represents a specimen found at Torquay 

 by Mr. Gosse, who kindly presented it to me in the 

 dried state. Natural size. 



Fig. 2. — A skeleton spiculum from the specimen 

 represented by fig. 1. X 530 linear. 



Fig. 3. — A spiculum from the skeleton fibre of the 

 type-specimen in the Johnston Collection of British 

 sponges in the British Museum. Figured in Plate V, 

 fig. 1, 'Johnston's British Sponges.' X 530 linear. 



The figured specimen is apparently younger than the 

 type one in the British Museum, and in consequence 

 of the presence of a quantity of sarcode the colour is 

 different ; it is of a full orange-yellow. The spicula, on 

 an average, are rather less stout than those of the type- 

 specimen, but there is so much variation in that 

 character that those represented by figs. 2 and 3 - 

 might readily be found among the spicula from either 

 specimen. 



Chalina GiiAoiLENTA, Bowerhmilc. 



Vol. ii, p, 372, ' Mon. Brit. Spongiada3.' 



Fig. 4. — Represents the type-specimen on Gorlmm 

 tormentosum, from the cabinet of the late Mrs. Griffiths. 

 Natural size. 



Fig. 6. — Represents a specimen from North Devon 

 in the cabinet of the Rev. A. M. Norman. Natural 

 size. 



Fig. 6. — A skeleton spiculum from the type-speci- 

 men. X 530 linear. 



