18 MUSEUM, BKOUKLYX IXSTITUTE OF AllTS AND SCIENCES. 



lip.s as there are radial canals. The radial canals enter the stomach at the 

 highest point, and do not extend down the peduncle. The entoderm is deli 

 cate blue-green. Common off the Florida coast and Bahamas. 



Cladonema Perkinsii. 



Fig. 35, Plate IV. 



Cladonema, s\>.. Pkrkins, H. P., 1903; Johns Hopkins Univ. Circ, Vol. XXI., No. 155, p. 25. 

 Figs, in text. 



Bell half egg-shape; less than 2 mm. in diameter. Bell-walls thin and 

 uniform. Eight large unbranched tentacles, the distal ends of Avhich bend 

 outward. The inner and lateral sides of each of these tentacles bear 3-10 

 flexible cirri which are besprinkled with wart-like clusters of nematocysts 

 and terminate in a knob. There is a large ectodermal, cup-like ocellus, with 

 a lens upon the outer side of each tentacle bulb. Velum large, and with 

 circular striations. Manubrium large and spindle-shaped with about six 

 rounded protruding pouches at its widest part. Mouth surrounded by five 

 oral tentacles, each ending in a ball of nematocysts. The manubrium is thus 

 oetameral at top, hexameral in the middle, and a five-pointed star at the 

 mouth. Genital products develop in the ectoderm of a large part of the ma- 

 nubrium. Ocelli black, all other parts colorless. Found by Ur. H. F. Per- 

 kins swin)miug on the surface at night in Jul}', 1902, in Nassau Harbor, 

 Bahamas. 



Description and figure taken by permission from Dr. Perkins. 



THE OLINDIADiE.* 



The most characteristic medusa? of the shallow water of the Bahama banks 

 are species of Cubaia (Gonionemoides) and Olindias. These together with 

 Olindioides, Gonionemus, Vallentinia, and possibly Liniiiocnida and Limno- 

 codium may be grouped under a single family. 



Olindiadag: With a pad-like cluster of modified nematocyst cells upon the 

 aboral side, near the distal extremity, of some or all of the tentacles. With 

 four or six radial canals, and with or without blindly-ending centripetal 

 canals. With gonads upon the radialcanals. 



*See Goto, S., 1903; Mark Anniversary Volume, p. 3-22, Pis. I.-IH. Also, Perkins, H. F , 

 1903 ; Proc. Acad. Nat. Sci. Philadelphia, p. 750-790, 5 Pis. 



