356 



SMITHSONIAN MISCELLANEOUS COLLECTIONS 



[VOL. s& 



typical species, which A. milberti is not, as it never has more than 

 ten arms, and second because it is very common and easily obtainable. 

 Himerometra ranges from the Red Sea and east African coast east- 

 ward through the East Indies to Japan and the Hawaiian Islands. 

 The described species referable to the genus Himerometra are: 



Himerometra abbotti (A. H. Clark) 

 aMnis (Hartlaub) 

 anceps (P. H. Carpenter) 

 articulata (J. Miiller) 

 bella (Hartlaub) 

 bengalensis (Hartlaub) 

 bidens (Bell) 

 bimaculata (P. H. Car- 

 penter) 

 breviemveata (P. H. Car- 

 penter) 

 brockii (Hartlaub) 

 cl 'emeus (P. H. Carpen- 

 ter) 

 crassipinna (Hartlaub) 

 delicatissima (A. H. 



Clark) 

 dbderleini (de Loriol) 

 elongata (J. Miiller) 

 emendatrix (Bell) 

 erinacea (Hartlaub) 

 Anschii (Hartlaub 

 Uagellata (J. Miiller) 

 gyges (Bell) 

 helianthus A. H. Clark 

 imparipinna (P. H. Car- 

 penter) 

 indica (Smith) 

 klunsingeri (Hartlaub) 

 kraepelini (Hartlaub) 

 larvicirra (P. H. Carpen- 

 ter) 

 htdovici (P. H. Car- 

 penter) 



Himerometra marginata (P. H. Car- 

 penter) 

 martensi (Hartlaub) 

 milberti (J. Miiller) 

 monocantha (Hartlaub) 

 nematodon (Hartlaub) 

 occulta (P. H. Carpen- 

 ter) 

 okelli (Chadwick) 

 oxyacanttia (Hartlaub) 

 palmata (J. Miiller) 

 persica A. H. Clark 

 philiberti (J. Miiller) 

 re galls (P. H. Carpen- 

 ter) 

 regince (Bell) 

 quinduplicava (P. H. 



Carpenter) 

 reynaudi (J. Miiller) 

 savignii (J. Miiller) 

 spicata (P. H. Carpen- 

 ter) 

 spinipinna (Hartlaub) 

 sty lifer (A. H. Clark) 

 subtilis (Hartlaub) 

 tenera (Hartlaub) 

 tenuipinna (Hartlaub) 

 tcssellata (J. Miiller) 

 tuberculoid (P. H. Car- 

 penter) 

 variipinna (P. H. Car- 

 penter) 



n. CYLLOMETRA, gen. nov. 



Centro-dorsal discoidal, bearing 15 to 25 marginal cirri more or 

 less regularly arranged in one or two rows; cirri with 15 to 30 seg- 

 ments, very uniform in size and proportions, usually about as long 

 as wide, smooth, or bearing single or paired dorsal spines or a trans- 

 verse dorsal ridge distally; disk naked or with fine calcareous gran- 

 ules, often segregated in the interambulacral areas ; pinnule ambu- 



