ery minute sharp spint- in lateral view; <mi the second-fourth segments the iateral angles 

 of tliis ridge project beyond the borders <>l the cirrus segments as seen dorsally, hut from that 

 point onward it becomes narrower, beyond the sixth dividing more or less completely into two 

 transversely oblong sharp ridges or smal! sharp spines ; the antepenultimate segment bears a 

 single spint- . the opposing spine is much larger than the spine on the preceding segment. 



The radials are just visible beyond the centrodorsal ; the IBr, are very short, aboul four 



times as broad as long, with the proximal and distal edges straight and parallel, and the 



.1 edges ging slightly; there are slight rounded ventrolateral projections; the axillaries 



are broadly pentagonal, half again as broad as long; synarthrial tubercles are moderately 



d; like the IBr, the axillaries and first brachials have slight rounded ventrolateral 



proce I he arms resemble those of the other species of the genus; on the lower oblong 



brachials there is a faintly indicated rounded median carination. The arms are 35 mm. to 



mm. long, and very slender. 



In some specimens the ventrolateral processes on the ossick-s of the IBr series and the 

 fust brachials are produced into a rounded triangular flange, of which the axillary has two, a 

 proximal and a distal. 



P, is 2 mm. long vvith 8 or 9 segments, nearly as stout basally as P 3 , but tapering 

 more rapidly and becoming slender and delicate distally; the first segment is short, the following 

 gradually increasing in length and becoming slightly longer than broad on the third and about 

 twice as long as broad distally ; the distal edges of the outer segments are slightly spinous. 

 1' is 3 mm. long, stift" and spine-like, though slender, tapering slowly from the base to the 

 tip. composed of 8 or 9 segments of which the first is twice as broad as long, the second is 

 nearly as long as broad, and the third is nearly twice as long as broad; the remainder are 

 about three times as long as broad-, the third and following bear long and prominent spines 

 on the prismatic angles ; the pinnule is rather strongly prismatic. P s is 2 mm. long, small and 

 slender, slightly stiffened. composed of 8 segments which become elongate distally. P 4 is 125 mm. 

 long, very delicate and not stiffened, composed of 9 segments which becomè much elongate 

 distally. P, is similar to P 4 , but slightly shorter, The distal pinnules are 2.5 mm. long, exceedingly 

 slender and delicate, composed of 1 3 segments of which the second and third are strongly 

 carinate and the outer are very greatly elongated. 



Some specimens show a much greater development than others of the spines on the 

 ments of the lower pinnules. 



The disk is thickly sprinkled, or almost covered, with small rounded plates. 



The specimen from Stat. 79-' has the arms about 15 mm. long, and 11 — 12 cirrus 

 segments; that from Stat. 144 has arms about 20 mm. long: that from Stat. 260 has arms 

 mm. long. and cirri with 1 1 segments. 



In addition to those mentioned above 1 have before me a specimen from the Gulf of 

 Davao, Philippine Islands, dredged in 18 fathoms ("Albatross" Stat. 5248; Cat. X" 36038 

 5. Nat Mu 



