i^7G ]\Ir. E. T. Browne 07i Uydromtdusoi 



Amphicodon unicus, ^). n. 



Umbrella bell-shaped, a little liiglier than broad. 



Stomach cylindrical and nearly as long as the umlnclla- 

 cavity. 



Gonads surround the tube-like stomach and extend from 

 near the base of the stomach to close to the mouth. 



One solitary tentacle, situated between two rudimentary 

 basal bulbs; three perradial bulbs without tentacles. 



Size : 3 niillim. in height and 2 millim. in width. 



The collection contains only a single specimen. 



TiaridsB. 

 TIARICODON, gen. nov. 



TiaridfB with four perradial tentacles. 



iStoniach with four perradial lobes extending along a 

 peduncle. 



Gonads upon the stomach and the lobes. 



Exunibrclla smooth, without nematocysts. 



Margin of the umbrella without bulbs between the ten- 

 tacles. 



Ko perradial mesenteries. 



Tiaricodon cceruleus, sj). n. 



Umbrella bell-shaped, with a rounded sunmiit, about as 

 high as broad. 



Ex umbrella smooth and not covered with nematocysts. 

 Velum narrow. 



iStoniach a quadrangular tube extending down nearly to the 

 velum and situated on a short broad peduncle. 



Mouth with four perradial lips, about as wide as the 

 stcmach; margin folded. 



Gonads surrounding the base of the stomach and extending 

 over the peduncle along the four perradial sac-like lobes. 



Tentacles four, perradial, lairly stout, and tapering to a 

 point. 



Basal bulbs large, cylindrical, a little longer than broad, 

 with an ocellus. 



fSize : 25 millim. in height and 24 millim. in width. 



'J he collection contains twelve sjjecimens, showing the 

 eaily, intermediate, and adult stages. The earliest stage is 

 just like a little >S'ar6?'rt. 



