180 J. KE. DusrpEN—Jamaican Actiniaria : 
flesh digested, was-extruded by the animal while under observation in the 
laboratory. 
MM. Duchassaing and Michelotti obtained their specimens upon submerged 
rocks at Guadaloupe. 
Andres places the species, as Aureliania elegans, among his Aurelianide dubic. 
It is undoubtedly a Discosomid as here defined, and not enough is yet known of 
the British Aureliania to warrant such a generic relationship. The perfect 
similarity of type of its sphincter muscle with that of S. helianthus must be taken 
into account in any consideration of its relationships. 
Family.—CoraALLIMoRPHID&, Hertwic. 
W ) g 
Corallimorphide, . . Hertwig, 1882 ; M*Murrich, 1893; Haddon, 1898. 
Corynactide, . . . Andres, 1883. 
Stichodactyline, in which the tentacles are all of one form, capitate, and com- 
paratively few; a distinction between a peripheral cyclic series and an inner radial 
series may or may not be apparent. Muscular system weak in all parts of the 
body ; sphincter muscle absent or weak. 
This family was established by Professor R. Hertwig (1882, p. 21) for the 
reception of two species of ‘‘ Challenger” Actiniz, both belonging to the genus 
Corallimorphus of Moseley (1877). The genus was considered to bear a close 
relation to both Discosoma and Corynactis, and, in the ‘ Supplement” (1888, 
p- 10), the latter is definitely included in the family. In his great work, pub- 
lished a year later, Andres employed the more preferable family name Corynactidze 
to embrace the genera Corynactis, Corallimorphus, and Capnea. Of the two terms 
having thus practically the same significance, Hertwig’s, bearing priority, must be 
the one employed. 
The characters which Hertwig regarded as of greatest diagnostic importance 
in the genus Corallimorphus, and which at that time held also for the family, 
were, ‘‘the double corona of tentacles, the equal distribution of the reproduc- 
tive elements, and the absence of the circular muscle.” These can now be 
retained only for Corallimorphus. In Corynactis there is not the same distinc- 
tion between an outer and an inner series of tentacles, the distribution of the 
gonads is not fully known, while a circular muscle, though not strong, certainly 
exists. 
