MONOGRAPH OF THE EXISTING CRINOIDS. 631 



He notes that all three forms possess a very typical dorsal ornamentation 

 and have a similar color scheme with longitudinal stripes of pigment on the 

 dorsum ; from this he concludes that the whole group of related forms are comatu- 

 lid dwellers, since if not it would be strange that so marked a pattern should 

 occur on a free-living galatheid when it is a character so definitely associated 

 with crinoid commensalism in this and in other groups. 



Miers says of this species that no two specimens agree exactly in their mark- 

 ings. In the Bornean specimens collected by the Samarang the stripes are much 

 broader than in the Philippine specimens, from one of which they are wholly 

 absent. In the specimen from Albany Island they are distinguishable only on 

 the anterior part of the postabdomen. The ground color in nearly all is dull red. 



Potts notes that the dorsum and limbs are covered with dark pigment, but 

 there are generally pigment-free longitudinal bands of variable width. 



Haswell records the color as dark purple, and as yellowish with three narrow 

 longitudinal dark purple bands on the body and one on either side of the chelipeds 

 and ambulatory legs. 



Grant and McCulloch state that the color is most variable. Their specimen 

 from Port Curtis when alive was a bright scarlet with a central longitudinal 

 purple band only on the last segment of the abdomen. 



Distribution. Eecorded from Madagascar, Tuticorin, in the Madras Presi- 

 dency, India, Gulf of Martaban, Ceylon, Port Molle and Port Curtis, Queensland, 

 Albany Island, Albany Passage, Murray Islands, Holborn Island, and off Mabuiag, 

 Torres Strait, Amboina, Moluccas, New Britain, Singapore, Unsang, Borneo, 

 Corregidor, Luzon, Philippines, Bonin Islands, and Sagami Bay, Japan. 



Bathymetrical Range. Littoral, and down to 120 meters. 



GALATHEA INFLATA POTTS. 



Some, or all, of the specimens were found on Comanthus annulatus. 

 The color of the carapace was dark blue with two fairly broad longitudinal 

 pigment-free bands; others, referred to this species by Potts, were white. 

 Locality. Murray Islands, Torres Strait. 

 Bathymetrical Range. Littoral. 



GALATHEA MINUTA POTTS. 



This species was found on Comanthus annulatus. 



The carapace showed alternate longitudinal stripes of white and dark blue 

 of about equal width. 



Locality. Mabuiag Island, Torres Strait. 

 Depth. About 4 fathoms. 



UNDETERMINED OALATHEID. 



Dr. L. E. Griffin reports that on a specimen of Comanthus parvicirra cap- 

 tured at Port Galera, Mindoro, Philippines, which was olive green, becoming 

 proximally yellow with dark brown longitudinal bands and spots, he found 



142140 21 Bull. 82 42 



