STARFISHES OF THE PHILIPPINE SEAS. 477 



row of small pedicellariae, 1 to 3 to each adambulacral plate. Some- 

 times they stand on an intermediate plate. Furrow narrow, tube 

 feet in 2 series; the pedicels opposite prominent plates are smaller 

 than the others, and a trifle out of line at the base of the ray. 



Madreporic body small, about one-third the diameter of the ad- 

 jacent basal plate. 



Type.— C^t. No. 37009, U.S.N.M. 



Type-locality. — Station 5637. 21 miles southwest of Amblan Island 

 (off Bouro Island), Moluccas (lat. 3° 53' 20'' S.; long. 126° 48' E.), 

 700 fathoms, gray mud; 1 specimen. 



DistHhution. — Known only from the type-locality. 



Remarks. — Among the species described by Alcock from the Bay 

 of Bengal and adjacent waters this species stands nearest to Z. 

 harathri, dredged in 1,520 fathoms in the Bay of Bengal. It differs 

 from Z. planus (Laccadive Sea, 1,200 fathoms) and Z. angulatus 

 (Gulf of Manaar, 597 fathoms) in lacking the series of conical cari- 

 nal spines. In addition, Z planus has hemicylindrical depressed rays, 

 a very large madreporic plate, and central spines on the supero- 

 marginals as well as on the other lateral plates, while the adambu- 

 lacral plates do not have 2 transverse rows of spines on the actinal. 

 face. The disk is very definitely delimited from the base of the rays, 

 the covering of spinelets is sparser, and the central spines are longer. 

 Z. angulatus agrees in having the double series of subambulacral 

 spines, but differs in the distribution of adambulacral pedicellariae, 

 has superomarginal central spines, and quadriserial tube feet. 



ZOROASTER CARINATUS PHILIPPINENSIS Fisher. 



Plate 116, fig. 3 ; plate 135, figs. 3, 3a ; plate 137. 

 Zoroaster carinatus philippinensis Fisher, 1916&, p. 30. 



Diagnosis. — Differing from Z. carinatus (Andaman Sea) in hav- 

 ing more numerous adambulacral spines (6 or 7 instead of 4 or 5), 

 with many more pedicellariae; less tumid apical plates, less promi- 

 nent central spinelets to carinal plates ; more numerous pediccllariao 

 generally. Disk small, rays long, slender, pointed, with a midradial 

 ridge or carina; central spinelets of carinal plates slightly enlarged; 

 4 rows of slender appressed spinelets along side of ray (3 in small 

 specimens) ; superomarginal and proximal inferomarginal plates 

 without central spine (the latter sporadically with a spine in cari- 

 natus) ; prominent adambulacral plates with transverse series of 6 

 or 7 spines (5 in small specimens), the inner 2 with several large and 

 small pedicellariae; 11=194 mm., r=:13.5 mm., R=14 r; breadth of 

 ray at base, 14 or 15 mm. 



Description. — Disk flat-topped, or only slightly domed, and ele- 

 vated above midradial ridge of ray. Primary apical plates not 



