79 
f- from 1 6 to 25 arms 
g' ?, and P.. stout, flagellate distally, very long; F, markedly 
longer and stouter than P.,-, 31 — 42 cirrus segments; colour 
usually light, with the cirri purple, at least distally (Ceylon 
and the eastern coast of 1 nd ia to Burma) . . rcynaudii 
g^ lower pinnules slender and relatively short, P,, P., and P., 
being not greatly dift'erent in length; P., and P., are 
markedly stouter than P,, and 1^ is usually slightly stouter 
than P., though the reverse often occurs; 31 — 35 cirrus 
segments; colour violet, the cirri light yellow, sometimes 
entirely light yellow bro^'n (western coast of India) coiiipfa 
d= 21 — 32 (rarely over 30) cirrus segments; P, and P., similar and 
of about the same length, not greatly longer than P;, though stouter 
e^ brachials beyond the proximal very short with strongly produced 
distal edges; 26 — 31 cirrus segments; 14 — 18 arms (Sin- 
gapore) ^-^'A''''^ 
e- brachials longer with more oblique ends which overlap only 
very slightly if at all 
fi 1 i_i5 arms (Ceylon and the eastern coast of India) bengalcnsis 
p 16—18 arms (Amboina to the Philippine Islands) . affinis 
I. Hetcromctra creintlafa (P. H. Carpenter). 
VON Graff. Das Genus Myzosto}na, 1877, pp. 15, 22, 72, 79 {Comatitla dubia). 
P. H. Carpenter, Journ. Linn. Soc. (Zool.), vol. 16, 1882, p. 507 [Antedon crenulata). 
Bell. Proc. Zool. Soc. London, 1882, p. 534 [Antedon deapiens and Antedon irregularis). 
P. H. Carpenter. Proc Zool. Soc. London, \^%2 {\%%i),^.T^(b [Antedon decipiens, A. crenulata 
and A. irregularis). 
BELL. , Alert" Report, 1884, p. 159. pl- ". ^g^- ^' ^^ {Antedon deapiens); p. 161, pi. 13, 
figs. A, Aa—c [Antedon irregularis). 
VOX Graff. 'Challenger" Reports. Myzostoma, 1S84, pp. 15, iS [Antedon dubia); pp. 15- K' 
17 [Antedon bidentata); Narrative, vol. i, 1885,, part i, p. 316 M«/^^^« -^^'^^w/^/^) I Myzostoma, 
1887, part 61, p. 7 [Antedon bidentata). 
P H Carpenter. Quart. Journ. Micros. Sci., vol. 28, 1887, p. 3S6 [Antedon irregularis). 
«Challenc;cr" Reports. Comatulae, 1888. pp. no, 197. 258, pl. 36. figs- 1-6 [Antedon 
dubia); pp. 97, 262 [Antedon bidentata); p. 256, pl. 36, figs- 1—6; pl- 48, figs. 3—5 ; P'- 49- 
figs. I — 2 [Antedon variipinna). , . -• ^ 
BrauN. Centralbl. fur Bakteriol.- und Parasitenkunde, vol. 3- '888, p. 185 [Comatula dubia); 
p. 186 [Antedon bidentata). 
HaRTLAUB. Nova Acta der ksl. Leop.-Carol. deutschen Akademie der Naturforsch.. vol. 58, 
1 89 1, N" I, p. 17 (in key) [Antedon variipinna). 
Bell. Proc. Zool. Soc. London, 1894, p. 394 [Antedon variipinna). 
•Kofhler. Mem. soc. zool. France, vol. 8, 1895, p. 419 [Antedon variipinna). 
Chadwick. in Herdman, Cevlon Pearl Oyster Report, part 2, 1904, P- 157 [A»Udon variipinna). 
MlNCKERT. Archiv fur Naturgesch.. 1903. L P- 212 (footnote) [Antedon variipmua and Antedon 
dubia). - 1 o f .> 
A. H. Clark. Smithsonian Miscellaneous Collections (Quarterly Issue), vol. 52. '90^ part 2, 
p. 214 [Himerometra anceps); p. 216 [Himerometra variipinna). 
