20 BULLETIN OF THE 



Synapta, sp. (?). 



From the defective state, ca close examination is impossible. The handle 

 of the symmetric anchors is dentate and the flukes serrated. The anchor- 

 plates are rather large, rounded or oval, perforated with numerous holes, and 

 at the slightly narrower truncate end, where the anchors are attached, resem- 

 ble an irregular network. The margin of the plates is uneven from the pres- 

 ence of processes or spines, and spines are also present on the surface of the 

 plates at the margin of the holes. Possibly the species is identical with 

 Synapta abyssicola, Theel. 



Habitat. Lat. 39° 25' 30" N., Lon. 70° 58' 40" W., depth 1394 fathoms ; 

 one incomplete specimen. 



Chirodota rotifera PouRTALi:s. 



The largest specimen, which measures about 75 mm. in length, has fifteen 

 digits in each of the twelve tentacles (Ludwig only counted twelve digits). 

 The wheel papillae are principally placed on the interambulacra, but a few 

 also occur on the ambulacra, and they are less numerous on the ventral sur- 

 face than on the three dorsal interambulacra. 



Habitat. Pcto Seguro (Thayer Exp.) ; several specimens. 



Chirodota contorta Ludwig. 



Habitat. P^rt Gallant, Patagonia; numerous specimens. 



