480 



BULLETIN 100, UNITED STATES NATIONAL MUSEUM. 



other plates have 3 to 5 spinelets, the one on the furrow usually with 

 a small pedicellaria. Terminal plate large. 



Type.— C^t. No. 37010, U.S.N.M. 



Type-locality. — Station 5587, Sibuko Bay, Borneo, 415 fathoms, 

 green mud, sand, coral, bottom temperature 42.3° F. ; 1 specimen. 



DistHhution. — Philippine Islands, from northern Luzon to Tawi 

 Tawi, and Sibuko Bay, Borneo. 96 to 604 fathoms, usually on green 

 mud. 



Specimens examined. — Ninety, from the following stations: 



Specimens of Zoroaster c. philippinensis examined. 



sta- 

 tion. 



5123 

 5124 

 5183 

 5215 

 5216 

 5259 

 5265 

 5268 

 5272 

 5273 

 5278 



5282 

 5297 

 5298 

 5325 

 5326 

 5371 

 5388 

 5411 

 5412 

 5417 

 5418 

 5453 

 5476 

 5527 

 5528 

 5538 

 5565 

 5587 



5589 



Locality. 



03 Malabrigo Light, east coast Mindoro 



Off Point Oripou, east coast Mindoro 



Between Panay and Ncgros , 



East of Masbate Island , 



Between Masbate and Luzon 



Off northwestern Panay 



Batangas Bay, Luzon 



do 



China vSea, off Corregidor Light, Luzon 



do 



Chtaa Sea, between Lubang Island and 



Manila Bay. 

 do 



Oflt Batangas Bay (Verde Island Passage) 



do 



on Hermanos Island, northern Luzon 



do 



Off Tayabas Light, Marinduque Island 



Between Burias and Luzon 



Between Cebu and Bohol 



do 



do 



do 



Albay Gulf, southern Luzon 



San iSernardino Strait 



Between Siquijor and Bohol Islands 



do 



Between Negros and Siquijor 



Between Jolo and Tawi Tawi 



Sibuko Bay, Borneo 



.do. 



Depth 

 (fath- 

 oms). 



283 

 281 

 96 

 604 

 215 

 312 

 135 

 170 

 118 

 114 

 102 



248 

 198 

 140 

 224 

 230 

 338 

 226 

 145 

 162 

 165 

 159 

 146 

 270 

 392 

 439 

 256 

 243 

 415 



260 



Nature of bottom. 



Green mud 



Soft green mud 



do 



Green mud 



do 



Gray mud, globigerina 



Sand, mud 



Sand, pebbles 



Mud, shells, coral sand. 



do 



Fine sand, mud, shells. 



Dark gray sand . . 



Mud, sand 



Sand 



Green mud 



Mud 



Soft mud 



Soft gi-een mud . . 



Green mud 



do 



Gray mud, sand . 

 do 



Fine sand 



Globigerina ooze 



do 



Green mud, sand 



Sand, Pteropod shells . 

 Green mud, sand, 



coral. 

 Fine gi-ay sand, gray 



mud. 



Bottom Num- 



temp- ber of 



erature speci- 



" F. mens. 



63.4 

 50.5 

 63.1 

 49.3 



57.4 



59.6 



53.2 

 55.4 



51.4 

 55.2 

 54.8 

 54.4 

 54.4 



48.3 

 53.3 

 53.3 

 53.3 

 52.3 

 42.3 



45.7 



Gen-a.s CNEMIDASTER Sladen. 



Cnemidanler Si-aden, 1889, p. 423. Type, C, wyvillii Sladen. 



CNEMIDASTER WYVILLII Sladen. 



Plate 134, figs. 3, 3ff ; plate 138. 



Cnernidaster wyvillU Sladen. 1889. p. 424, pi. 67, fisrs. 3 and 4 ; pi. 68, figs. 

 3 and 4. 



The genus Cnernidaster Sladen was based upon a single, very 

 immature specimen of the present species, dredged by the Challenger 

 in 800 fathoms in the Arafura Sea. The measurements of this type 

 are : E, 22 mm., r, 4.25 mm. The smallest specimen in the Albatross 

 collection has R=33 mm. When adult, Cnernidaster bears a very 



