586 THE AMERICAN NATURALIST. | [Vor. XXXV. 
CANNOTID&, 
Radial canals four, each with lateral, sometimes pinnate, branches which 
end blindly. A single genus within the range of this synopsis so far as 
known to the writer . . |, TUR pr PUT Puch 
EUCOPIDÆ. 
4. Marginal tentacles four, sometimes with lateral basal cirri. . 
1. Manubrium very long, extending much r velum Eutima 
2. Manubrium short, tentacles with basal c . . Eucheilota 
3- Manubrium short, tentacles devoid of bid cirri . . Clytia (Juv.) 
B. Marginal tentacles sixteen or more. 
1. Manubrium long, bell hemispherical . Su 
2. Manubrium short, bell disk- like, phic on ree of thia 
Ol 
3. Manubrium short, mouth plain, bell wap EI xn between 
bases of tentacles 4 Clytia 
4. Manubrium short and with PE aid iid iod oe Tiaropsis 
(2) With 16 tentacles ; : . . Epei 
5. Manubrium short and with TT ites plain, aar 
(6) With more than 16 teaches "CV Doe E 
ZEQUORID;E. 
4. Radial canals eight or more, often lobed or divided at their esr 
B. Radial canals numerous, twelve to one fons or more. 
1. Manubrium very short, often aposto and with crenulated 
oral margin . : Rhegmatodes 
2. Manubrium well din dmet. dai margin i Jobed bat plain Æquorea 
3. Manubrium large and with complex and fimbriated oral lobes 
Zygodsctye 
Lafwa cakarata A. Ag. (Fic. 50). 
Bell broad, somewhat conical or dome-shaped, marginal tentacles numer- 
ous, ce 
tentacular spurs, clubs, and cirri; gonads damon in convoluted ee 
beneath radial canals, of milky or yellowish color; manubrium short 
with convoluted oral lobes. When first liberated, the medusa is € 
with only two tentacles, others appearing with growth ; ocelli are 
upon the bases of the tentacles. Size about 20 mm. in diameter. iini * 
bid. | 
