90 ECHINODERMA OF THE InDIATST MtTSEUM , PART VII. 



COMANTHERTA ALTERNANS. 



Actinomefra alternant ISSl. P. H. Carpenter, Notes from the Leyden Museum, 



vol. 3, p. 2()S. 



Habitat. — Port Molle, Queensland; Philippine Islands. 



Depth. — Littoral, and down to 28 fathoms. 



Remarks. — The type at Leyden has about ninety arms ; the division series 

 are regularly alternating, the IIBr series being 4 (3-(-4), the IIIBr 2, the IVBr 

 4 (3-t-4), the VBr 2, etc. ; there are almost no exceptions to this regular alterna- 

 tion. The centrodorsal is in shape like an Hippasteria. not yet having become 

 stellate. 



COMANTHERIA BRIAREUS. 



Avtedon briareus 1884. Bell, Rep. Zool. Coll. H.M.S. " Alert," p. 163, pi. xiv. 

 Actinomefra divaricata 18HS. P. H. Carpenter, " Challenger " Reports, vol. 26, 



Zoology, p. 332, pi. Ixiii, figs. 6-8. 

 Actinomefra duplex Brit. Mus., MS. 



Actinometra parvicirra Brit. Mus., MS.— 1894. Bell, P. Z. S., 1894, p. 394. 

 Actinomefra typica Beit. Mus., MS. 



Habit.\t. — Port Denison, Queensland; Port Walcott, northwest Australia; 

 Baudin Island; Banda; Amboina; Billiton ; Sunda Islands; West Java; 

 Bassett-Smith Bank ; Philippine Islands. 



Depth. — Littoral, and down to 50 fathoms. 



COMANTHERIA MAGNIFICA. 



Actinometra magnifica 1888. P. H. Carpenter, " Cliallenger " Reports, vol. 26, 

 Zoology, pp. 330, 333. 

 Habitat. — Philippine Islands . 



COMANTHERIA ORANDICALYX. 



Actinometra (/randlcalyr 1882. P. H. Carpenter, Jourii. Linn. See. (Zool.), vol. 

 '16, p. 520. 



Habitat. — Canton, China. 



Remarks. — In general appearance this animal resembles Comanthus pinguis\ 

 there is the same large centrodorsal ; the brachials imbricate slightly ; the sides 

 of the division series and of the arms are brown ; there is a median line of dirty 

 white on each. 



There are three cirri still remaining on the centrodorsal, with 22, 24, and 2.") 

 segments respectively, the last seven or eight with dorsal processes, small blunt 

 tubercles becoming sharper outwardly, but never prominent. 



The first cirrus segment is short, the following gradually increasing in length, 



