STAEFISHES OF THE PHILIPPINE SEAS. 185 



others. This tendon seems to be smaller than in either P. forcipatus 

 or P. evoplus. 



In P. hylacanthus the attachment of the muscle is to the sixth or 

 aeventh ambulacral plate, and the tendon is even less conspicuous 

 than in mimicU'S. 



Type. — In the British Museum. 



Type-locality. — Challenger station 191, Arafura Sea, northwest of 

 the Aru Islands (lat. 5° 41' S.; long. 134° 04' 30" E.), 800 fathoms, 

 green mud. bottom temperature 39.5° Fahr. 



Distribution. — Arafura Sea, Flores Sea, Strait of Macassar, and. 

 Celebes; recorded by Alcock and Wood-Mason from Laccadive Sea, 

 1,000 fathoms.^ Including the race palawanensis, to Palawan Pas- 

 sage. Bathymetrical distribution 692 to 1092 fathoms. Range in 

 temperature 36.3° to 39.5° F. 



/Specimens examined. — Thirteen, from the following stations: 



Station 5606, Gulf of Tomini, Celebes (lat. 0° 16' 28" S. ; long. 121° 

 33' 30" E.), 834 fathoms, grdin mud, 3 specimens. 



Station 5608, Gulf of Tomini, Celebes (lat. 0° 08' S. ; long. 121° 19' 

 E.), 1,089 fathoms, gray mud, bottom temperature 36.3° F. ; 3 

 specimens. 



Station 5609, same locality. 1,092 fathoms, green mud, bottom 

 temperature 36.3° F. ; 1 specimen. 



Station 5630, near Batjan Island, Molucca Islands, 835 fathoms;: 

 2 specimens. 



Station 5654, Gulf of Boni, Celebes, 805 fathoms, bottom not re- 

 corded, bottom temperature 38.3° F. ; 1 specimen. 



Station 5660, Flores Sea (lat. 5° 36' 30" S.; long. 120° 49' E.), 

 692 fathoms, gray mud, sand, bottom temperature 39.2° F. ; 1 

 specimen. 



Station 5668, Macassar Strait (lat. 2° 28' 15" S.; long. 118° 49' 

 E.), 901 fathoms, gray mud, bottom temperature 38.2° F. ; 2 speci- 

 mens. 



PECTINASTER MIMICUS PALAWANENSIS. new subspecies. 



Plate 52, fig. 3 ; plate 54, figs. 2, 2a. 



Diagnosis. — In general appearance, posture of superomarginal 

 spine, and restriction of abactinal spines to central axis of ray, re- 

 sembling P. mimicus., but differing in having, on the raj^, much 

 fewer granuliform spinelets accompanying the abactinal spines (be- 

 yond fifth superomarginal reduced to 1 to 5, or sometimes, distally, 

 to 0) ; in connection with this difference the marginal and actinal 

 spines are uniformly robust and there are very abundant actinal 

 intermediate, inferomarginal, intermarginal, and a few abactinal 

 pedicellariae ; the spinelets of marginal plates are few, being reduced 



^ Possibly referable to a distinct race. 



