POLYPI. 75 
Family II. Sertularina. Polyps affixed by a membranaceous 
pallium secreting the Polypary, or loricated, cluded in a tubule 
or cell. 
Hydractinia VAN BENED., Echinochorium TAssaLL, Dysmor- 
phosa Puixiprt, Synhydra QUATREFAGES. Polyps of two sorts, 
sterile and fertile, set on an incrusting polypary. Tentacles numer- 
ous. The fertile polyps without mouth. 
Sp. Hydractinea lactea, Dismorphosa conchicola, Puruiprt, Synhydra parasites 
QuatREF. Ann. des Sc. nat. sec. Série. Zool. Tom. xx. Pl. vir. rx., Has- 
SALL, Ann. and Mag. of Nat. Hist. Vol. vit. Pl. x. fig. 5, PHILIPPI, 
Wirem. u. Ertons. Archiv, vit. 1842. Taf. 1. fig. 3. Turbinate shells are 
often found incrusted with a greyish-brown firm covering, difficult to remove: 
this is the common body to which the several polyps, some millimeters long, 
are attached, which have of late years been described by different observers. 
QUATREFAGES found his specimens on the shells of Turbo and Buccinum, in 
which the hermit-crab (Pagurus) had taken up his abode ; so also BASTER 
previously, natuurk. Uitsp. 1. Tab. 11. fig. 5. According to QUATREFAGES, 
it is by no means established that all the above-mentioned names refer, as 
VAN. BENEDEN determines, to the same animal. 
Coryne GAERTN., Stepula Sars, Syncoryna EnXRENB. Polyps 
with scattered. tentacles, nodiferous or globose at the tip. Polypary 
papyraceous, subramose, with polyps at the extremities of the 
tubes, not retractile within the tubes. 
The name Coryne of GAERTNER, Patuas Spicileg. Zool. Fasc. x. 
1774, pp. 36, 40, 41, has by later writers been perversely given to 
other kinds, and the original typical species been named Syncoryne. 
Sp. Coryne pusilla GAERTN., Coryne glandulosa Pau. Spicil. Zool. x. Tab. 
Iv. fig. 8, &c. Compare on this genus Loven, Kong. Vetensk. Akad. Hand- 
ling. 1835; WiEaM. Archiv, 111. 1837. pp. 321—326, Ann. des Sc. Nat. 
2 Série. Zool. XV. p. 170, Pl. vil. JOHNSTON, Hist. of Brit. Zoophytes, pp. 
39—41, Pl. 11. 
Tubularia L. (in part). Polyps with a double coronet or whorl 
of tentacles, the upper surrounding the mouth. Polypary affixed 
by the base, tubular, gelatinous or membranaceous, with polyps 
terminal, not retractile. 
a) Simple Tubularie. 
Sp. Tubularia indivisa L., Tubul. calamaris Pauu., Jussinu, Mém. del’ Acad. 
Royale des Sc. 1742. p. 296. Pl. x. fig. 2. A, B; Enis, Corall. Pl. xvi.c; 
Lister, Phil. Transact. 1834. p. 266. Pl. vu. fig. 1, &c.; Jonnston, Hist. 
Br. Zooph. p. 48. pl. 1. 
