50 
the periphery of the centrodorsal ; outer portion of the cirri nearly 
straight; usually one or more of the IIBr series 2 instead of 4 (3 + 4): 
20 — 60 arms 
P usually 35 — 60 arms (Ceylon and the Bay of Bengal 
to western and northern Australia, the Solomon 
Islands, Fiji and Tonga, and northward to the 
Philippines) annulata 
{■ usually 20 — 30 arms (Seychelles, Madagascar and the 
Mascarene Islands to Ceylon and the Bay of Bengal, 
and eastward to western and northern Australia, 
New Caledonia, Samoa, Tonga, the P'riendly, Pelew 
and Caroline Islands, and northward to southern 
JapanandAmo)-, China) pa^'vicirra 
2? Cirri absent 
b^ usually between 35 and 60 arms, which are more than 100 mm. long 
(Ceylon and the Baj' of Bengal to western and northern 
Australia, the Solomon Islands, Fiji and Tonga, and north- 
war d t o t h e P h i 1 i p p i n e s) annulata 
b^ usually between 20 and 30 arms, which are rarely more than 100 mm. long 
(Seychelles, Madagascar and the Mascarene Islands to Ceylon 
and the Bay of Bengal, and eastward to western and northern 
Australia, New Caledonia, Samoa, Tonga, the Friendly, Pelew 
and Caroline Islands, and northward to southern Japan and 
A m o y , C h i n a) parvicirra 
I. Comanihus (Cenolid) bennetti (J. MuUer). 
Lamarck. Hist. nat. des animaux sans vertebres, vol. 2, 1816, p. 533 [Coviatula multiradiata, part). 
GOLDFUSS. Petrefacta Germaniae, vol. i, 1832, p. 202, pi. 61, fig. 2, a — s {Coviatula multiradiata). 
J. MULLER. Archiv fiir Naturgesch., 1841, I, p. 146 (Alecto bennetti). 
Abhandl. d. k. preuss. Akad. d. Wiss., 1841 (1843), p. 216 {Alecto bennetti). 
Abhandl. d. k. preuss. Akad. d. Wiss., \%:i,-j {\%i,()),i^.26\ {Comatula\Alecto\multiradiata, 
part); p. 264 {Coinatula bennetti). 
DUJARDIN et HUPE. Hist. nat. des zoophytes. Echinodermes, p. 208 [Cotnatula bennetti); p. 210 
{Actinoinetra multiradiata, part); p. 212 [Comas ter miiltiradiatus). 
BoHLSCHE. Archiv fur Naturgesch., 1866, I, p. 90 [Actinometra bennetti). 
LUDWIG. Zeitschr. fur wiss. Zool., vol. 28, 1877, p. 255 [Actinometra bennetti). 
LUTKEN. Cat. Mus. Godeffroy, vol. 5, 1877, p. 100 [Actinometra brachymera). 
P. H. Carpenter. Journ. Linn. Soc. (Zool.), vol. 13, 1877, p. 450 [Actinometra bennetti). 
Trans. Linn. Soc. (Zool.), (2), vol. 2, 1879, p. 27 [Actinometra bennetti). 
Notes from the Leyden Museum, vol. 3, 1881, p. 212 [Actinometra bennetti); p. 214 
[Actinometra peronii). 
• Journ. Linn. Soc. (Zool.), vol. 16, 1882, pp. 521, 523, 526 [Actinometra bennetti). 
VON Graff. "Challenger" Reports. Myzostoma, 1887, pp. 5, 7, 11 {Actinometra bennetti). 
P. H. Carpenter. "Challenger" Reports. Comatulae, 1888, pp. 59, 61, 329, 331, 348, 366 
[Actinometra bennetti); pp. 59, 324, 331, 348, 367, 386 [Actinometra peroni). 
