202 "Walsh — ■'Investigator^ Deep-sea Holotliurians, [No. 2, 



Tentacles 15, very small and of a deep purple colour. One, or two, 

 fairly large Polian vesicles ; calcareous ring very minute, a double row 

 of sucker feet on the middle ambulacrum of the trivium ; these are 

 more numerous and closer together near the anal end while they are 

 entirely absent fi-om the surface just below the mouth. A single row 

 of fairly long, slender retractile papillae are seen on each dorsal ambu- 

 lacrum. Two small bundles of genital tubes. The longitudinal mus- 

 cles are well-developed, broad, orange-yellow and visible through the 

 skin — only a few calcareous spicules and granules were found in the 

 muscular substance of the body. 



Many specimens. 



January 2nd, 1888, Andaman Sea off Port Blair, 271 fathoms, 

 (Giles), two specimens. 



April 12th, 1888, Andaman Sea 7| miles B. of N. Cinque island, 

 490 fathoms, (Wood- Mason) . Two specimens. 



Station 115, December 9th, 1890, Andaman Sea, lat. 11° 31' 40" N., 

 long. 92° 46' 40" E., of£ Dyer Point and K. of Cinque island, 188—220 

 fathoms, green mud, hot. temp. 56° {Alcock). Eleven specimens. 



Apodogaster, nov. gen. 



Body long flat and worm-like ; slightly wider anteriorly than 

 posteriorly. Down both sides there is a fringe, like that of Berithodytes, 

 in which are seen the long tubes of numerous sucker feet. The odd 

 ambulacrum is naked while the lateral ambulacra have one i-ow of small 

 sucker feet situated just below the lateral fringe. A single row of 

 papillae on each dorsal ambulacrum. Tentacles 15, mouth ventral. 

 Anus terminal. 



Calcareous bodies small granules and small wheel-like plates. 



14. Apodogastbr alcocki, n. sp. 

 Length 80 mm. 



" Light pink " {Alcoch). 

 One specimen. 



Station 112, November 7th, 1890, Bay of Bengal, lat. 13° 47' 30" 

 N., long. 92° 36' E., 561 fathoms, grey mud, bot. temp. 44-9° (AlcocTc). 



Order APODA. 

 Sub-order Pneumonophoba. 

 Family Molpadidse. 



15. Ankyroderma danielssenii, Theel, Chall. Rep. vol, xiv, Hoi. 

 p. 39. 



One specimen. 



