578 THE AMERICAN NATURALIST. [Vor. XXXV. 
CLADONEMIDZ, 
4. Radial canals simple. 
I. Marginal tentacles two, fringed with stalked nematocysts, bell with 
subconical apical projection . . Gemmaria 
2. Tentacles as in r, bell Pia, rikna projecto Corynitis 
B. Radial canals branched. 
Marginal tentacles in eight pairs . . . . . . . . . Willia 
Coryne mirabilis Ag. (FIG. 33). 
Bell elongate hemispherical, four to six mm. in diameter; manubrium 
very long. protruding far beyond the velum, but highly comeu tenta- 
cles likewise very long and filamentous, but capable of 
great contractility ; gonads borne upon body of manu- 
brium and at maturity filling 
entire bell cavity or even pro- 
spring and summer, swimming 
near the surface. Hydroid 
generation, — Tbid. 
Dipurena conica. A. Ag. 
(Fic. 34): 
FiG. 33- FiG. 34. Bell conical or subhemi- 
Fic. 33. — Coryne mirabilis Ag. spherical ; marginal tentacles 
IG. 34. ipurena ca A, Ag. 
knob-like ends, and with prominent basal bulbs, each with a single 
ocellus; manubrium elongate, often extending beyond the velum, 
portion constricted or narrowed, gastric cavity small, oral opening 
Size from three to four mm. Common during midsummer. Buzzards Bay, 
Vineyard Sound, etc. 
McCrady (Proc. Elliott Soc., Vol. 1) describes from Charleston 
two other species of Dipurena, namely, D. strangulata and D. cervicata, 
but I find no record of them as occurring elsewhere. 
Harbor 
Ectopleura ochracea A. Ag. (FIG. 35). 
the 
Bell elongate hemispherical, of nearly uniform thickness, wur 
aboral pole, which becomes somewhat conical and correspondingly pen 
In size the medusa varies from four to six mm. Marginal tentacles 100" 
