368 



MEDUSjE of the world. 



folded edges, about half as long as depth of bell-cavity. The 4 swollen spindle-shaped to club- 

 shaped gonads are upon the middle three-fourths of the radial-canals. Stomach green, mouth 

 rose-red, gonads yellowish, tentacles rusty-yellow or leather-yellow each with a brownish-red 

 basal ocellus. Found on the coast of France, Bretagne, at Croisic near St. Nazaire, in Sep- 

 tember. The Misses Delap found it at Valencia Harbor, Ireland. 



Fig. 210. — Gossea "circinata," after Hacckel, in Syst. der Medusen= Gossea corynetes. 



Thaumantias corynetes Gosse, from the coast of Devonshire, England, appears to be a 

 young stage of the medusa described by Haeckel as "Gossea circinata"; as will appear from 

 the following analysis of their characters: 



In other respects the two "species" are identical. 



Gossea brachymera Bigelow. 

 Gossea brachymera, Bigelow, H. B., 1909, Mem. Museum Comp. Zool. at Harvard College, vol. 37, p. 103, plate 30, figs. 1-10. 



Bell 5 mm. wide and 4 mm. high, dome-shaped with thick gelatinous walls and very 

 shallow bell-cavity. 8 groups of tentacles, 4 radial and 4 interradial, 8 simple adradial 

 tentacles, and 16 marginal papillae. Each radial and interradial cluster contains only 2 

 tentacles, one of which is about as long as the bell-diameter and is ringed with nettle-cells 

 and terminates in a knob of nematocysts. These long tentacles project from the exum- 

 brella at a short distance above the margin. The other tentacle of each cluster is very 

 short, but has nettle-rings and a terminal knob. It arises from the basal bulb at the bell- 

 margin, below the long tentacle with which it is associated. The tentacles are all solid with 

 chordate entoderm. Bigelow can give no certain account of the lithocysts. The stomach 

 is mounted upon a short, broad peduncle, and this peculiarity serves to distinguish this 

 species. There are 4 triangular slightly fimbriated lips. 4 simple, folded gonads on middle 

 thirds of the radial-canals. Color in life (?) In formalin gonads, tentacles, and manubrium 

 are pale yellowish-brown. Acapulco Harbor, Pacific coast of Mexico. A single specimen. 



Genus M/EOTIAS Ostrooumoff, 1896. 



Maotias, Ostrooumoff, 1896, Bull. Acad. Imperiale Sci. St. Petersbourg, scr. 5, tome 4, No. 4, p. 402; Zool. Anzeiger, Bd. 19, 

 p. 30.— Browne, 1904, Fauna and Geog. Maldive and Laccadive Archipelagoes, vol. 2, part 3, p. 736. 



The type species is Mceotias inexspectata Ostrooumoff, from the Sea of Azov, Russia. 



