644 BULLETIN 82, UNITED STATES NATIONAL MUSEUM. 



OPHIOMAZA CACAOTICA VAR. PICTA KCEHLER. 



This form, which was described merely as a color variety of the preceding, 

 was found among the echinoderms collected by Korotneff in the Sunda Islands, 

 probably at Billiton. Professor Kcehler does not mention the comatulid upon 

 which it occurred. 



Lieutenant Potts records it from Torres Strait, on Comanthus annulatus. The 

 individuals were prettily marked with black and white. 



OPHIOMAZA OBSCURA (LJUNGMAN). 



This species was originally described from Singapore, and I have seen speci- 

 mens from that locality on Capillaster sentosa. Lieutenant Potts found it on 

 Comanthus annulatus at Maer, Murray Islands, Torres Strait, and says that the 

 specimens were brown, handsomely marked with dull yellow. 



OPHIOMAZA CATAPHRACTA (BROCK). 



Ophiomaza cataphracta was described from Cape York, Queensland. 



OPHIOMAZA MCGRENS KCEHLER. 



This species is known only from Cantores Island, in the Mergui Archipelago. 



_ 



OPHIO-SSTHIOPS UN1COLOR BROCK. 



This species was described from Amboina, where Doctor Brock found it living, 

 apparently as a commensal, upon a species of Comasteridse, which it resembled 

 in color. 



OPHKXETHIOPS ELEGANS (KCEHLER). 



This form was described from the Dutch East Indies. 



OPHIOPHTHIRIUS ACTINOMETRJE DODERLEIN. 



Ophiophthirius actinometrce was described as a commensal on Comatula Solaris 

 from Thursday Island, Queensland. 



OPHIOSPH^ERA INSIGNIS BROCK. 



Doctor Brock found this species at Amboina on one of the Comasteridae, which 

 it resembled in color. 



Family OPHIOLEPIDIDyE. 



None of the species of this family can have other than a purely accidental 

 association with crinoids. 



OPHIOMUSIUM, SP. 



Attached to the dorsal side of the centrodorsal of a specimen of Perissometra 

 ftexilis from near the Kei Islands, in 140 fathoms, P. H. Carpenter found an 

 ophiuran which he believed to belong to the genus Ophiomusium, so far as he was 

 able to make out its characters from a view of the dorsal surface only; but he 



