Station 73. 
266 THE VOYAGE OF H.M.S. CHALLENGER. 
Asteroid ka (Sladeu, Zool. pt. 51). 
Plutonaster notatus, n.g., n.sp. Obtained at no other locality. 
\<-omorphaster eustichus, n.g., n.sp. Obtained also at Station 76, 900 fathoms. 
Only species of the genus. 
Ophiuroidea (Lyman, Zool. pt. 14). 
Ophiactis canotia , n.sp. Three specimens; obtained at no other locality. 
Echinoidea (Agassiz, Zool. pt 9). 
Salenia varispina, Agassiz. For distribution see Station 23. 
Annelida (MTntosh, Zool. pt. 34). 
Leanira hystricis, Ehlers. Two fragmentary specimens ; obtained also at Station 7 6, 
900 fathoms. Recorded from North Atlantic (“ Porcupine” 
and “ Knight Errant ”). 
Stau rocephalus atlanticus, n.sp. A few fragments ; obtained at no other locality. 
Ostracoda (Brady, Zool. pt. 3). 
Cytherc dictyon, n.sp. Widely distributed (see Station 24). 
,, acanthoderma, n.sp. Obtained also at Stations 64, 146. 191a, 246, 296, 
and 302. 
„ irpex, n.sp. Obtained also at Stations 78 and 335, 1000 and 1425 fathoms. 
Cirripkdia (Hoek, Zool. pt. 25). 
Dichclaapis sessilis, n.sp. One specimen (attached to spine of Echinid) ; obtained 
at no other locality. 
Schizopoda (Sars, Zool. pt. 37). 
Gnathophausia zoea, Willemoes-Suhm, n.g., n.sp. One specimen ; obtained also at 
Stations 106, 126, and 171, 600 to 1850 fathoms. Taken 
subsequently by French expedition in Bay of Biscay. 
/ icopio australis, Dana. Obtained also at Stations 50, 92, 107, 146, 158, and 237. 
A NOMURA (Henderson, Zool. pt. 69). 
Pa<jurod< s (?) sp. One imperfect specimen in shell of Pleurotoma. 
Brachyura (Miers, Zool. pt 49). 
Elfonn microphthalma, Smith. One specimen ; obtained at no other locality by the 
Challenger. Recorded from coast of New England. 
