720 ; THE VOYAGE OF H.M.S. CHALLENGER. ' 
RANGE IN _ en 
: D ; ATURE OF THE SEA- 
tna a Boros 
PHANEROZONIA. 
ARCHASTERIDE, 
Subfamily PLuToNAsTERINA, 
Sladen. 
Dytaster, Sladen. 
*D. xquivocus, Sladen. : . | Arafura Sea. 800 -| Green mud. @) 
*D. bisertalis, Sladen» . | Between Madeira and Azores. 2025 —|_ Globigerina ooze. @ 
*D. exilis, Sladen - : . | W. of 8. America. 1375 Globigerina ooze, (3) 
*D. exilis, var. carinata, Sladen . | Off coast of N. America, 1700 Blue mud. (4) 
*D, exilis, var. gracilis, Sladen . | W. of Tristan da Cunha. 1900 |. Globigerina ooze. (6) 
*D. inermis, Sladen. . | N. of Celebes.’ 2150 Blue mud. (6) 
*D. madreporifer, Sladen . . | Off coast of N. America. 1240-1700 | Blue mud. (7) 
*D, nobilis, Sladen. 6 . | E. of Buenos Ayres. 2650 Blue mud. (8) 
*D, spinosus, Sladen . 5 3) | 36: 1070" Ne, 1784070": 2050 Globigerina ooze. (9) 
D. (2) grandis, Verrill, sp. . . | E. coast of N. America. 5 1106-2033 Beneee (10) 
Plutonaster, Sladen. 
*P, abbreviatus, Sladen 5 . | Off the Azores, | 1000 Voleanic mud. (11) 
*P, ambiguus, Sladen . G . | E. of Australia (off- Sydney). 950 Green mud. (12) 
Faerde Channel; coast of Por- 
tugal ; Mediterranean ( fide alae : 
*P. bifrons, Wyville Thomson, sp. {| Milne-Edwards); N. Ame- |} 210-1360 { Sen cee \ (as) 
rica; Barent’s Sea (fide . 
Norman). 
*P. marginatus, Sladen é . | Near Island of Ascension, 425 Volcanic sand. (a4) 
*P. notatus, Sladen. ° . | Near the Azores. 1000 Pteropod ooze. (15) 
*P. rigidus, Sladen. : . | E. of N. America. 1700 or 1240} Blue mud. ~ (16) 
*P. rigidus, var.semiarmata, Sladen | E. of N. America, 1340 or 1350 | Blue mud. 7) 
P. () agassizit, Verrill, sp.. . | E. of N. America. 182-1342 600500 (18) 
