. Bulletin - United States National Museum. Science. NORTH PACIFIC OPHIURANS IN NATIONAL MUSEUM CLARK. 171 wider than long, barely in contact. Tentacle scales f-vvo, luuisuiilly large and flat, nearly closing the large pores. Locality.—AVmtross station 4964, off eastern Japan, lat. 34° b' 30" N.; long. 134° 56' 40" E., 37 fathoms, fine gray sand, mud, bottom temperature °, 2 individuals without disks. Type.—Cat. No. 25633, , from station 4964. It is too bad that this very well marked species shoukl be repre- sented in the collection only by two diskless specimens, for I k
. Bulletin - United States National Museum. Science. NORTH PACIFIC OPHIURANS IN NATIONAL MUSEUM CLARK. 171 wider than long, barely in contact. Tentacle scales f-vvo, luuisuiilly large and flat, nearly closing the large pores. Locality.—AVmtross station 4964, off eastern Japan, lat. 34° b' 30" N.; long. 134° 56' 40" E., 37 fathoms, fine gray sand, mud, bottom temperature °, 2 individuals without disks. Type.—Cat. No. 25633, , from station 4964. It is too bad that this very well marked species shoukl be repre- sented in the collection only by two diskless specimens, for I know of no other species in wliicli typical Amphioplus mouth parts are com- bined with such remarkable tentacle scales and arm plates. It would be most interesting to know the disk structure. AMPHILEPIS PLATYTATA, new ; Disk S mm. in diameter; arms about 32 mm. in length. Disk excessive]V flat, covei-ed with a smooth coat of about two hundred. Fig. 70.—AMPHILEPIS PLATYTATA. X G. «, FROM AliOVE; 1), FROM BELOW; C, SIDE VIEW OF THREE ARM J() NEAR large, thin, rounded scales. Radial shiekls, more than twice as long as broad, well separated within, but just barely in contact distallv. Upper arm plates broadly pentagonal, with somewhat rounded angles and a convex distal margin, twice as wide as long, not in contact except at very base of arm. Interbrachial spaces below, quite naked except for a few marginal scales. Oral shields triangular, with slightly convex sides, a little wider than long. Adoral plates large, wider without than within. Oral plates large, each canv^nng tAvo low, wide, truncate papillae. Teeth nearly triangular. Genital slits very inconspicuous. First under arm plate large, somewhat pentag- onal, with inner lateral margins concave; succeeding plates also a nXazurazoc, signiiymg flattest, in reference to the exceedingly flat Please note that these images are extracted from scanned page images that may have been digitally enh
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