ACTINOPODOÜS HOLOTHÜEIOIDEA. 265 



species is given in textfig. 53 a — c. The disk of the table is 

 more or less round in outline. It has three large holes, alternating 

 with wliich there are three smaller holes (a). On this disk 

 rises a high spire, consisting of three columns with several cross- 

 bars. In most cases there are teeth on tlie outer side of the 

 columns. Sometimes the holes remain open, as in c. Towards 

 the anterior end of body the tables are similar in shape and 

 become somewhat smaller. Towards the posterior end, the disks 

 of the tables become more complex, extending themselves in two 

 or more diameters and thus becoming lozenge- shaped, triangular, or 

 square {b, c). The disks also exhibit a larger number of holes. 



I agree with Walsh in considering these specimens to be 

 very close to T. antarcHcum Theel, but they agree better with 

 T. andamanense Walsh. 



Locality : — S.E. of Cinque I., Audamau Sea (Walsh '91) ; " Investigator " 

 Stats. 222, 233, 234, 235, 263, 265 (Koehlek Sc Vaxey '05) ; Sagami Sea. 



Genus Ankyroderma Danielssex à Koeen 1879. 



68. Ankyroderma dioniedUv^ sp. n, 



(PI. Vni., %. 77; textfig. 54). ~ 



Specimen examined : — One individual from off the moutli of the River 

 Öigawa, "Albatross" Stat. 5073, Lat. 34° 46' N. and long. 13S° 21' 50" E., 

 14S fms. Oct. 16, 1906. (No, 5073). 



Description-. — The bod}^ is 8cm. long and the tail 3.1 cm. 

 The skin is much transversely wi'inkled and feels rough to the 

 touch. In the middle third of the body, there are visible even 

 to the naked eye little scattered elevations, wliich mark the places 



