The Ceinoids feom Dr. S. Bock's Expedition to Japan 1014. 79 



ceding segment. The first segments proximaily somewhat narrower, 

 and therefore a rather serrate proximal profile. 



R — s narrow bands. I Br 1 h == ^/4 br, laterally free. Axillary 

 h = '4 br. Br 1 h = ',2 br, basally united inside. Arms X, 25 mm. 

 Syzygies with an interval of 3 — -4 oblique articulations. Distal Br-seg- 

 ments L= 1 V'2 br, smooth. 



Pj 0—7; 2 mm. Pg + 10; 4 mm. P3 7 — 8; 2,5 mm. I\, lacking, 

 P,, 9; 2,5 mm. (3'' and the following segments L = 2—3 X br, smooth). 

 Distal p. + 3,5 mm. 



Disk thrown off. Colour: \iolet spots on a white ground. 



A young specimen of Colobometridœ. probably referable to this 

 species, is also: 



Sp. S (St. 12) Cd diseoidal, br 1,5 mm. - C. X 16-18; 5,5—6 mm. 

 The cirrals are rather short, the longest ones L = the distal br. From 

 the 4"" — 7''' segments a transverse crista. A single doi-sal spine from 

 the 7"^ cirral. 



I Br 1 and 2 with a weak longitudinal earination. Arms X, 

 broken. Syzygies: 3 + 4, 9 -r 10, 14+15 etc. with an interval of 3 

 oblique articulations. 



Pi 10, shorter than P^, which is 11; 4 mm. P3 9; 3 mm. P5 11. 

 P^ absent. Disk thrown off. 



Fixed on an Acanthogorgia Dofleini Kükth. & Goez.' 



Though C. disciformis is evidently very closely related to C. 

 manca I have, however, kept them as separate species. A. H, Clark 

 distinguishes the first-mentioned one from G. manca by the long proxi- 

 mal cirrals. Nevertheless at the same time he states (Siboga Exp. 

 Vol. 42 B, p. 116) that the length of the cirrals rapidly decreases in 

 specimens of G. disciformis from deeper water. The deepest localities 

 from which this species has previously been dredged are 180 fathoms. 

 The above-described specimens are found at depths of 400 and 90 to 

 200 fathoms respectively and have therefore very short cirrals approach- 

 ing those of G. manca. I have described below a specimen from Kiu 

 Shiu Islands belonging to this species. In this one the cirrals are never 

 longer than broad. It is moreover a smaller form than the above- 

 described species from shallower water but in spite of that with shorter 

 cirrals. The larger G. disciformis seems also to have fewer arms in 



' For this information I am indebted to my friend Mr. Magnus Aubivillius. 



