24 Gcel. 
XVI. CffiLENTERATA. 
III. SYSTEMATIC. 
New Families , General Species, and Varieties, 
HYDROZOA. 
Gymnoblastea., 
Halecium argenteum , allied to H. macrocephalum , 100 miles S. of Panama 
City, in 458 faths. ; Clarke (46). H. kukenthali , E. Spitzbergen ; 
Marktanner-Turneretscher (143). II. septentrionale, Deeviebai, 
E. Spitzbergen ; Marktanner-Turneretscher (143). 
Haleremita , n. g., intermedito between Hydrarice and other Hydroid 
polypes. Polyp enclosed in foreign particles ; tentacles four in num- 
ber, solid and simple ; nematocysts pear shaped ; reproduction by 
budding. FI. cumulam , Schaudinn (184). 
Perigonimus gelatinosus, P. inflatus , S.W. Ireland; Duerden (59). P. 
jonesii , Long I. ; Osborne & Hargitt (166). 
Tubiclava rubra , Wellington, New Zealand ; Farquhar (64). 
Cunjne tenella, Now Zealand ; Farquhar (64). 
CALYPTOBL4STEA. 
Laomedia ( Gonothyrea ) clarkii, E. Spitzbergen Marktanner-Turne- 
retscher (143). 
Lictorella geniculata , 100 pailes S. of Panama City, 458 faths. ; Clarke 
(46). 
Obelia castellata, 140 jniles S.W. Panama City, 782 faths.; Clarke (46). 
Sertidaria variabilis , S. of Panama City, 458-1168 faths. ; Clarke (46). 
Thuiaria Urchenpaueri , E. Spitzbergen ; Marktanner-Turneretscher 
(143). 
Hydrocorallinje (fossil). 
Millepora sp., Tertiary Limestone, Sagara, Totomi, Japan ; Nishiwada 
(159). 
MEDUS2E. 
Mayer (147) describes the following, obtained on a cruise to the 
Bahamas : — 
Bougainvillea niobe , Nassau Harbour. 
Gubaia , n. g., C. aphrodite , Cay Frances, N. of Cuba. 
IFybocodon forbesii, Nassau Harbour. 
Jreniopsis , n. g., I, primordial^ Little Bahama Bank. 
Zoja (218) adds the following new genus : — Qctogoiiade , n. g. Lepto- 
medusan with 8 simple radial canals, which spring independently 
from the cylindrical gastric cavity ; manubrium with 8 oral lappets ; 
marginal vesicles with numerous otoliths. O. mediterranean Messina. 
