A FEW MEDUS.E NEW TO WOODS ROLL. 1 7 



ing the manubrium. Tentacles four, with rather prominent 

 basal bulbs, hollow, attenuate in shape and densely crowded with 

 nematocysts. Velum well developed ; ocelli absent ; height of 

 bell 2-4 mm. by about half as broad. Color, bell transparent, 

 gonads and manubrium milky white. 



While the medusa has characters which indicate relations with 

 the Codonidae, c. g., the simple mouth opening, straight, simple 

 tentacles, general shape, etc., it has likewise characters which 

 also point to relations with the Tiaridae, such as the subquadra- 

 tic manubrium, lobular arrangement of gonads on the radial sides 

 of the manubrium, and the apical projection of the bell. From 

 a critical comparison of the sum of the characters with Haeckel's 

 description of the genus Protiara which he established for a 

 medusa which in general characters appears to have much in 

 common with the one under consideration, it seems to find its 

 place appropriately under this generic head, and may be taken 

 to constitute a sort of connecting link between the two families, 

 since Haeckel designates his as the prototype of the Tiaridae, 

 and most nearly allied to the Sarsiadae of any of the Tiarids. 



But while undoubtedly allied with Protiara it is clearly a dis- 

 tinct species, differing in almost all its specific characters, as 

 color, shape, etc. For the present species I propose the name 

 P. Jiackeli, in honor of the author of the genus under which 

 it falls. 



As intimated above several species of Siphonphores were taken 

 in this collection which have not been determined and since they 

 are not at present accessible further account of them will be 

 deferred till such time as they may have adequate description. 



In Fig. 5 is shown an interesting Narcomedusa taken also in 

 surface tow near the Gulf Stream. Only a single specimen was 

 taken and this was slightly damaged and apparently immature, 

 having only four perradial tentacles with what seem to be very 

 small interradial tentacles. As in several of the previously men- 

 tioned cases, it was not possible to distinguish any sensory 

 bodies. The specimen is a member of the Solmaridae, and per- 

 haps belongs to the genus Solmaris, but in view of its apparent 

 immaturity, indicated by the absence of gonads and undeveloped 

 interradial tentacles, it seems probable that it may be the young 



