310 ECHINOPEKMA OF THK InDIAN MuSEUM, PART VTI. 



APPENDIX. 



. During the work upon the Indian Museum collections sjDecimens from time 

 to time were found which for some reason or other could not be satisfactorily 

 identified. These were mostly small, broken, or aberrant individuals : but among 

 them were several which appeared to be rejiresentatives of new species, related 

 most nearh' to species of which I had no exa.m])les at hand for comparison. 



These specimens were set aside in the hope that material would come to hand 

 from other som-ces which would assist in their determination. The study of the 

 enormoiLs " Siboga " collection, received soon after the return of the proof of the 

 first half of this monograph, enabled me to solve practically all of the problems 

 presented, though unfortunatelj' too late for the insertion of the species involved 

 in their proper places. They are therefore included here in the form of an 

 appendix. 



Seven specimens, all very small, resisted all attemj)ts at identification. They 

 represent the ten- armed young of certain multibracliiate forms of quite different 

 appearance. In order to make this report a complete catalogue of all the speci- 

 mens studied these are listed at the end of this appendix. 



CAPILL.ASTEK .AIULTIRADI ATA. 



Localities. — Southwest of th< iinnitJis oj tin' Irraicaddy River .• " Investigator '' 

 Station 387 (15° 25' N. lat., 93"^ 45' E. long.); 49-40 fat/ioins.— Three specimens. 



Two miles off Great West Toirrs Island. — Onj small specimen. 



Sovthcni portion of Malacca Stmit. — One specimen. 



Malaij Arclii pelago : Kid fathoms. — One specimen. 



Rej[.\Rks. — One of the specimens from Station 3.S7 has fifteen arms ; one of 

 the five IIBr series is 2 instead of the usual 4 (3-|-4). One of the other specimens 

 has thirty-eight arms SO mm. long, and the third has forty- two arms 90 mm. 

 long ; both of these approach in their general character C. sentosa. 



The specimen from Great West Torres Island has thirteen arms, and is under- 

 going adolescent autotomy. 



The examjjle from the southern portion of Malacca Strait is typical of the 

 species; it has twenty arms 75 mm. long; all ten IIBr series are present, all being 

 4 (3+4): the arms and division series are typically stout, and the brachials are 

 typically short ; the distal edges of the brachials are more strongly everted than 

 usual, finely spinous, and the dist;il edges of tlie elements of the division series 

 are similarly everted and spinous. 



The individual from 160 fathoms in the Malay Archipelago is most extra- 

 ordinarily irregular. It has thirty-six arms about 70 mm. long ; the arms are 

 c«-'inparatively stout ; the division series are stout and are in close lateral appo- 



