m DBOID Oi i HI \\ OOD HOLE REGION. 



379 



The above description is condensed from that of McCrady. Dr. Agassiz appears to doubt whether 

 his species is the same as that of McCrady, and describes it as having lateral cirri to the tentacles. I 

 have not seen this species. 



Eucheilota duodecemalis A. Ag. Fig. !)5. 

 (Cent. Nat. Hist. U. S., iv, p. 35:i.) 



Bell hemispherical or sub-globular. Marginal tentacles -), each with a sense-bulb and two lateral 

 cirri at its base. Three otoliths between each two tentacles, making twelve in all. Proboscis very 

 short, tubular, with inconspicuous lips. Ovaries along radial canals, very conspicuous when mature. 

 Radial canals 4. Velum broad. 



Colors. Spots on sense-bulbs straw-yellow. 



Distribution. Buzzards Bay (A. Ag. ); Newport; Woods Hole. 



Clytia noliformis (McCr. ). 



( f.'aii/pft/Kifaria uttlifai'iitit ^k('r.. Proc. Elliott Soc., vol. I, No. 1, p. 194.) 



Bell hemispherical. Marginal tentacles 4 in young, and more numerous in adults. Otocysts 8, 

 two between each two radial canals; always between tentacle bases, and not on them. No eye-spots. 

 Proboscis very short, ending in a four-lobed mouth. Radial canals 4. 



CiJ'ifis. There arc no conspicuous colors. Ovaries yellowish-white. 



Di-li-ilintioii. Buzzards Bay and Xaushon (A. Agassiz, under name of Plfity/ii/j-ia ri/lin<lrii-a) . 



Clytia bicophora Ag. 



(Cent. Nut. Hist. U. ,S., vol. iv, p. 3<H.) 



Bell hemispherical, considerably flattened in older specimens. Tentacles 4 to 16, according to 

 age. Otoliths 8 or 16, according to age, placed between tentacular bases. Proboscis short, ending in a 

 4-lobed mouth. Ovaries, in adult, reaching along radial canals nearly to proboscis. Radial canals 4. 



> ../,,, -<. Ovaries brown. Black spots on swollen bases of tentacles. 



Dinlrilmtion. Naushon; Vineyard Sound (A. Ag.). 



I have not seen this species, and the above description is condensed from that given by Dr. A. 

 Agassiz, North American Aralepha 1 , p. "8. 



9T. Til/Ill I'oi-ul 



97. itbili'ii riiniiitittin-itli* McCr. 



Tima formosa Ag. Fig. 96. 



(Com. Nut. Hist. U. fi., vol. IV, p. 362.) 



Bell broadly campanulate, the edges perceptibly flaring, the lateral outline sinuous. Marginal 

 tentacles 32, some of which are often rudimentary, with swollen sense-bulbs at their bases. Otocysts 

 numerous, placed between the bases of the tentacles, each with a few granules near its margin. 

 Proboscis very long, in the shape of a very attenuate cone with its base upward, and extending far 

 beyond the bell opening when expanded. Mouth surrounded by four conspicuous frilled lappets. 

 Ovaries strongly convoluted and extending the full length of radial canals and proboscis. Radial 

 canals 4. Size very large. Among the largest of our hydroid medusa;. 



Colon. Ovaries and sense-bulbs whitish; sometimes light-yellowish. 



Digtrilvtion. Woods Hole (F. M. Walmsley); Vineyard Sound (Verrill). 



