\ I 1 * !ark. 



\ j i Washington, vol. 25, 1912, p. 22. 



Metres. 1 Ex. 



lal, moderately thick, the flai dorsal pole 4 mm. in diameter. 



[XXII, usually the latter] aboul 20 mm. long; the fifth and sixth 



,,r si\th ar< the longest, about half again as long as broad; the seventh 



is a transition segment, strongly marked, with a dark band; the 



nearlj or quite twice as broad as long; the distal dorsal edge of the 



the transition segment slowly becomes more and more prominent, forming 



ridge which on the outer segments becomes subterminal, remaining as .1 



nam which may be more or less elevated in the centre; on about the fifth 



following the transition segment a small low tubercle appears midway between this 



and the proximal end of the segments which on the onter segments becomes ppinted, so 



thal in lateral view the dorsal profile of the segments is bidentate, as in Oligometrides aJconac-. 



the proximal segments are slightly constricted centrally with prominent ends; proximal 



to the transition segment the cirri are brownish yellow, bevond white and highly polished. 



There are exactly forty arms 95 mm. long, all grooved; all the IIBr series are 4 (3 -f 4), 

 all the IlIHr series 2: there is no further division. The division series are moderately broad, 

 well rounded dorsally, moderately separated. The dorsal interradial perisome carries small 

 scattered inconspicuous plates. 



The brachials are moderatelv overlapping. Syzygies occur between the third and fourth 

 brachials, again between the 1 i th and 1 2 Ul (more rarely i2 lh and 1 y h \ and i6 th and 1 7 lh (less 

 commonly 1 7 lh and 1 s :ii , and distally at intervals of three oblique muscular articulations. 

 The mouth is submarginal and interradial. 



mant lier ia weberi is very closely related to C. in ter media of southern Japan from 

 which it differs in having somewhat stouter cirri with fewer segments of which the longest are 

 half again as long as broad instead of only slightly longer than broad. 



Comanthina A. II. Clark. 

 1 Comanthina schlegelii (P. 11. Carpenter). 



P. II. CARPENTER. Notes from the Leyden Museum, vol. 3, 1881, p. 210 [Actinometra schlegelii). 

 Journ. I.inn. Soc. (Zool.), vol. 10, 1882, p. 521 [Actinometra sp.j Banda). 

 1. "Alert" Report. 1884, p. 169 Actinometra multifida, part. 

 P. II. CARPENTER "Challenger" Reports. Stalked Crinoiils, [884, p. i\o [Actinometra dissimilis). 



. "Challenger" Reports. Myzostoma, 1887, p. 13 {Actinometra nobilis). 

 1'. II. CARPENTl i . -1 hallenger" Reports. Comatulae, 1S88, p. 335, pi. 64, fig. 3 (Actinometra 



ituplci . p. 336, pi. 65 [Actinometra nobilis); p. 347. pi. 68 [Actinometra regalis). 

 HAMANN. Jenaische Zeitschr., vol. 23, 1889, g. 234 {Actinometra nobilis). 



'Ie biol., vol. II, 1891, p. 315 {Actinometra nobii 

 H.M N . Acta der Leop.-I arol. deutschen Ak.nl. der Naturforsch., vol. 58, 1 



tinometra parvicirra, part); p. 99 'Actinometra regalis). 



