4(1 



BULLETIN OF THE BUREAU OF FISHERIES. 



Eutima limpida A. Agassiz. 



Eutima limpida A. Agassiz, in L. Agassiz. Contributions Natural History United stuns, Vol. IV. 1862, p. 262; North American 

 \, ;il, |,h i , 1865, p. 116. Haeckel, System der Medusen, 1x79. p. 191. 



This medusa is very similar in general aspects to the preceding species, if indeed il may no! be 

 found upon a more critical comparison to be identical, or perhaps a regional variety. Its size seems to 

 me the only distinctive difference, though the tentacles are said to be shorter and to have the basal 

 enlargement. Agassiz gives the size of adults as nearly 2 inches broad by about I inch high. He 

 describes the otocysts also as of unusual size, easily visible to the naked eye. 



In many years of collecting about Naushon I have never taken this medusa, nor do I find it 

 reported by other collectors. May it not be that some unusually large specimens afforded the occasion 

 for this specific distinction? 



Distribution.— Buzzards Bay, Naushon (A. Agassiz). 



EUCHEILOTA McCrady ( L857). 



Eucheilota ventricularis McCrady. PI. IV, fig. 1. 



Eucheilota ventricularis McCrady, Proceedings Elliott Society Natural History. Vol. I. 1857, p. is;. 



Eucheilota L. Igassiz, Contributions to Natural History of United States, 1862, Vol. IV, p. 353. 



Eucheilota ventricularis A. Agassiz. North American Acalephse, 1865, p. H. Haeckel, System -der Medusen, p. 179, 1879. 



Bell subhemispherical, broader than high. Marginal tentacles 4 perradial, with 4 somewhat 

 rudimentary interradial, each set witha pair of basal cirri. The interradial tentacles afterward develop 

 and adradial tentacles appear with later maturity, but none of the specimens taken by me showed 

 these, and they are therefore absent in the figure given. Velum well developed. Gonads in spindle- 

 like masses on the distal third of the radial canals. ( mtogeny unknown. 



Colors. — Bell transparent, tentacular liases and manubrium bright green by reflected light. 



Distribution. — Fairly common in the waters adjacent to Woods Hole, and at Newport (Fewkes). 



Eucheilota duodecimalis A. Agassiz. PI. IV, tig 3. 



Eucheilota duodecimalis A. Agassiz, in L. Agassiz, Contributions Natural 

 History United states. Vol. IV, 1862, p. 353; North American 

 Acalephse, 1865, p. 75. 



Phialium duodecimale Haeckel, System der Medusen, is; 1 .', p. L80. 



Medusa similar in form to the preceding species, but 

 distinguished by having but 4 long tentacles with their 

 lateral cirri, and by the presence of li' otocysts, 3 between 



each two tentacles. 



Distribution. — Similar to the preceding species. 



CLYTIA Lamouroux (1812). 



Clytia bicophora L. Agassiz. Text cut. 



Clytia bicophora L. Agassiz, Contributions to Natural History of United 

 States, Vol. IV, 1862, pp. 304, 354. A. Agassiz, North Amer 

 ican Aciilcphtc, 1SH5, p. 7s. 



Epenthesis bicophora Haeckel, System der Medusen, 1879, p, 184. 



Medusa variable in form and other characters with development, at first inclined to be globular, 

 later hemispherical. Marginal tentacles at first but 4; at maturity. lt>. Velum fairly well developed, 

 though narrow, otocysts s, disposed on either side of the perradial tentacles. 



Ontogeny. — From hydroid Clytia bicopliora. 



Colors. — Bell, transparent; ovaries and tentacle liases, brownish. 



Distribution. — Not especially abundant, though frequently taken at various points within the 

 region. Frequent in the tow at Woods Hole. 



i 'lytia bicophora. 



