12 



Hab. On sea weed and old shells, about low water mark. 

 Gorran Haven, common ; Polperro, rather rare ; Talland 

 sand-bay, and Looe. 



This species is gregarious in its habit, growing on fuci and 

 attaining the height of two to eight lines. It is attached by 

 a narrow base; in young specimens, the appearance is like 

 that of a common hydra, with the tentacula irregularly 

 arranged on various parts of the body; in older specimens 

 the base is prolonged into a narrow footstalk, with the 

 tentacula at the summit. The tentacula are filiform and 

 vary from five to twenty in number. The colour is reddish 

 with occasionally deeper spots about the tentacula and base. 

 It is sometimes found on the under surface of stones within 

 low water mark. 



HERMIA, Johnston. 



Generic Character: Polype fixed, sheathed in a thin horny 

 membrane, clavate or branched and subphytoidal, the 

 apices of the branches clubbed, and furnished with scat- 

 tered glandular tentacula; no mouth. 



H. GLANDULOSA. The branches in pairs, and the ten- 

 tacula shorter than the enlarged heads of the branches. 



Tubularia Coryna, Turton's Linnseus, vol. 4, page 668. 

 Stewart's Elements of Natural History, vol. 2, p. 438. 

 Coryne Glandulosa, Fleming's Brit. An., p. 553. Johnston 

 in Mag. Nat. Hist., vol. 5, p. 631, fig. 110. Hermia 

 Glandulosa, Johnston's British Zoophytes, p. Ill, fig. at 

 page 109, and pi. 4, figs. I and 2. 



Hab. Found under stones about low water mark in 

 sheltered situations ; not uncommon. Polperro, Gorran, 

 Whitsand-bay. 



These polypes have a very singular appearance. The head 

 is large and irregular, and along its sides the tentacula stand 

 out in an irregular manner. The tentacula are club shaped, 

 with a rounded extremity. Inferiorly the pulp is enclosed 

 in a horny membranous sheath, but the polype-heads 

 and neck are naked or covered with but a very slight con- 

 tinuation of the horny envelope. In its actions it is very 

 slusrgish ; but it has a power of moving each of the tentacula, 

 independent of the others or all together. The polypidom is 

 confervoid, horny, wrinkled and somewhat dichotomously 

 branched, and varies in height to about an inch. It is not 

 very uncommon in particular localities throughout our south- 

 ern shores. As at Giggen, Polperro ; Vault-beach, Gorran ; 

 and in particular spots in Whitsand-bay. It prefers the 

 under surface of stones about low water mark; and pools 

 between tide marks in sheltered situations where small algae 

 abound. 



