BY R. VON LENDEXFELD, PH.D. 269 



Chrysaora Blossevillei. Lesson, 1843. Acalephes, p. 401. 

 Lobocrocis Blossevillei. L. Agassiz, 1862. Monogr. Acal. 

 Contrib. IV., p. 166. 



(!) Pelagia volutata. Coutliouy. Manuscr. in L. Agassiz, 

 1862. Monogr. Acal. Contrib., IV., p. 166. 



(!) Zygonema volutata. L. Agassiz, 1862. Monogr. Acal. 

 Contrib., IV, p. 127-166. 



Umbrella slightly vaulted to semi-spherical, twice as broad as 

 high. 32 marginal flaps oval, all of the same size and equally 

 projecting (octantes therefore with simple marginal arcb), Radial 

 pouches 1 Mouth-arms lancet-shaped, strongly curved, shorter than 

 the diameter of the Umbrella. Tentacles filiform, longer than the 

 diameter of the Umbrella. 



Colour : Umbrella white, with yellow tinge, and brown design. 

 Rust coloui'ed mouth arms. 



Size : Breadth of Umbrella 100 mm. Height of Umbrella, 

 40 mm. 



Locality : Coast of Brazil, Island Santa Catharina. Lesson. 



Species. Chrysaora plocamia. 



Haeckel, System der Medusen. Seite, 516. 



Cyanea plocamia. Lesson, 1829. Voyage de la Coquille. 

 Zool., p. 116, pi. XII., fig. 4, 



Cyanea plocamia. Lesson, 1843. Acalephes, p. 385. 



Stenoptycha plocamia. S. Agassiz, 1862. Monogr. Acal. 

 Contrib., IV, p. 162. 



Umbrella nearly semi-spherical, twice as broad as high. 32 

 marginal flaps nearly semi-circular. The 16 tentancular and 16 

 ocular flaps nearly the same size, equally projecting — (marginal 

 arch of the octants therefore circular) — Radial pouches 1 Mouth - 

 arms very broad and with many folds, in the middle nearly as 

 broad as the radius of the Umbrella. 1J times as long as the 

 diameter of the Umbrella. Tentacles shorter than the diameter 

 of the Umbrella. 



