LEPTOMEDUS^E — TIMA. 



315 



Synoptic Table of the Described Species of Tima. 



The peduncle is large, 4-sided, and pyramidal. It is nearly as wide as the hell-radius 

 at its hase, and ahout 1.5 times as long as the hell-radius. The 4-sided shape of the pyramidal 

 peduncle causes it to project outward over the floor of the subumhrella more in the perradii 

 than in the interradii, and this gives the appearance of 4 bays where the peduncle joins the 

 subumhrella. This is well shown in Delle Chiaje's good figure, published in 1822. 



The 4 linear sinuous gonads extend down the entire lengths of the 4 radial-canals from the 

 angles of the stomach to the circular vessel. They are narrower and not so complexly folded 

 as in T . formosa. The stomach is not quite one-third as long as the bell-radius and the 4 

 recurved lips are not so large or with such complexly folded margins as are seen in T. formosa 

 of America. 



