On lite Myrioporla of the ' C/iaVem/fr'' E.i'f'jJifion. 121 



as long as the plate, sepai-ating the pairs of tube-feet. All 

 these are hyaline, fluted, and invested in a felt of membrane 

 and microscopic pedicellariie. 



Actinostome large. Mouth-))lates very small; each plate 

 is made up of two adambulacrals so incompletely fused that 

 in place of the usual groove there is a ligamentous symphysis 

 between the two plates, and each bears the usual furrow and 

 cross-furrow spinelets unchanged and the actinal spine not 

 much changed — only diminished in size in the distal (aboral) 

 plate. 



Madreporiform plate marginal, small, deeply cross-fissured, 

 radially striated. A membranous (epiproctal?) appendage is 

 found on the disk excentrically. 



Colours in the fresh state dull reddish ochre. 



Off the Konkan Coast, 5o9 fathoms, green sand. 



This species is well characterized by the strong contortion 

 of the calcareous ridges at the base of the rays and their hoop- 

 like lateral elevation ; by the incomplete fusion and partially 

 ligamentous union between the two adambulacral elements 

 that make up a mouth-plate ; and by the curious membranous 

 epiproctal (?) appendage. 



Frf.yella, Perrier. 



55. Frei/ella tuberculata, Sladen. 



FreyeUa tuberculata, Sladen, ' Challenger ' Asteroidea, p. Q'^>!>, pi. cxvii. 

 figs. 1-3. 



Bay of Bengal, 18 fO fathoms, Olohigerina-oozQ. 



56. Freyella henthophilaj Sladen. 



FreyeUa henthophila, Sladen, 'Challenger' Asteroidea, p. 041, pi. cxi. 

 tigs. 5-8 ; and iu Wood-Mason and Alcock, " Indian Deep-sea 

 Dredging," Ann. «& Mag. Nat. Hist., Dec. 1891, p. 440. 



Bay of Bengal, 1520 to 1997 fathoms, usually on Gloh'i- 

 gerina-oozQ. 



XVI. — Beport upon the Myriopoda of the ''Challenger'' Expe- 

 dition, with Remarks upon the Fauna of Bermuda. By 

 K. I. POCOCK, of the British Museum (Natural History). 



[Plate IX.] 



Since marine biological reseai'ch was the main object of the 

 cruise of the ' Challenger,' and the capture and preservation 

 of terrestrial forms but a pastime, so to speak, of the zQologists 

 Arm. & Mag. N. Hist. Ser. 6. Vol. xi. 9 



