496 ME. p. H. CAEPEIS'TER OK ITEW 



again, tte terminal ones being very long and slender, so as to 

 give the arms a very feathery appearance. 



Disk lost, Sacculi tolerably close on the arms, but much 

 larger and more closely set at the sides of the pinnule-ambulacra, 

 which have only the very slightest trace of any superficial lime- 

 stone deposits. 



Colour of skeleton brownish white. 



Spread 15 centim. Disk must have been somewhat less than 

 3 mm. diameter. 



Locality. Pandanon, near Bohol, Philippine Islands. 30 fms. 

 The unique example of this species, which was dredged by Prof. 

 Semper at Pandanon, is now in the collection of Dr. Carpenter. 

 Prof. Semper' s description of the type is an excellent one ; but I 

 have ventured on another in order to add in some points which 

 were not noticed by him, and are of interest in the comparison 

 of Uudiocrinus Avith other Comatulcs. It is a very slender and 

 graceful [little species, diftering altogether in appearance from 

 those dredged by the ' Challenger ' which are described below. 



2. EUDIOCEINL'S VAEIAXS, n. sp. 



Centrodorsal low, nearly hemispherical, bearing about twenty 

 cirri in two rows which leave the dorsal pole free. Two forms 

 of cirrus occur in the same individual. — (1) With the three basal 

 joints as long or a trifle longer than wide ; the fourth consider- 

 ably longer, and the fifth and next following ones still more so, 

 reaching 3 mm. in length. Terminal joints unknown, (2) 

 Cirrus-joints cpite short, the first six about square, and the next 

 six a trifle longer than wide, Eemainder unknown. Eadials 

 partially A-isible. Pirst brachials nearly oblong, inclined to be 

 trapezoidal, with small lateral processes which are the edges of 

 the muscle-plates for articulation with the radials. Second bra- 

 chials also nearly oblong, with traces of a backward process into 

 the preceding joint, a pinnule on the right, and a small process on 

 the left side. The following joints have unequal sides, with a 

 pinnule on the shorter, and a large wing-shaped process on the 

 longer, which ceases on the sixth, or may go on to the eighth 

 joint. Succeeding joints quadrate and unequal-sided, with the 

 pinnule on the longer side. The twelfth and follomng joints 

 are distinctly longer than wide. 



Syzygia on the fourth and eighth or ninth brachials ; then an 

 interval of 2-5 joints between successive syzygia. 



The first six j)inuules have wide basal joints, the fourth and 



