MONOGRAPH OF THE EXISTING CRINOIDS. 709 



red; a few of the pinnules on green or yellow gi'een areas are white; elongated 

 oral pinnules chestnut dorsally and chocolate ventrally; disk blackish brown and 

 chocolate, the ambulacral grooves light yellow. 



(i) Very similar to the preceding, but with no white interbrachial plates; 

 centrodorsal white; terminal half of the arms 'very light greenish yellow.] 



\Comanthus bennetti. — (a) Division series and arms dull orange yellow with 

 numerous sm.all spots of dark orange; toward the middle of some of the arms the 

 spots become darker, and lighter again toward the tips; the color of the pinnules 

 in general corresponds to that of the arms; elongated oral pinnules dull orange 

 with spots of dark reddish orange; ventrally some arms are very dark brown, 

 while others are wholly or partly dull orange with spots of dark reddish orange; 

 disk dark wine red. 



(6) Division series greenish yellow with a thin stipple of very dark wine red; 

 arms dorsally very dark wine red stippled with light orange yellow, the latter 

 becoming more abimdant at the margins of the brachials; pinnules dorsally in 

 the basal third very dark wine red, heavily stippled with light orange yellow; 

 ventral surface of disk and arms light orange yellow very finely stippled with 

 very dark wine red, the stippling absent on the pinnules: centrodorsal dull orange 

 yellow ; cirri dorsally similar but in the terminal half light orange yellow stippled 

 with very dark wine red; ends of the tips vitreous, the bases glassy over dark 

 reddish orange. 



(c) Centrodorsal chestnut with white dots; division series purplish; arms 

 dark chocolate with two rows of alternating white spots on the ventral side of the 

 arms and the tips of the pinnules light brown; disk creamy white; cirri with 

 a tinge of purple and glassy tips. 



(d) Centrodorsal and division series very dark reddish brown, with just 

 a suggestion of dark purple, becoming lighter reddish brown in the terminal 

 half, very closely stippled with light yellowish green; arms and pinnules dorsally 

 dark reddish brown with a very light yellowish green stipple and ventrally the 

 same with the ambulacral grooves chestnut; disk dark reddish brown with a 

 purple tinge, with a very close stipple of light yellowish green; cirri dark reddish 

 brown with a purple tinge, lighter proximally and distally, with silver tips.] 



Comanthus soJasfer. — Dark purple, the disk, cirri, and pinnules brownish 

 yellow. 



Comanthus japonicus. — Bright yellow to deep yellow brown. 



Comanthus wahlhergii. — Dark violet to blackish. 



{Comanthus sa^noana. — {a) Arms dorsally olive, slightly lighter ventrally; 

 pinnules near the arm bases olive dorsally, slightly darker ventrally, toward the 

 ends of the arms becoming yellowish, slightly darker ventrally; tips of the pin- 

 nules much lighter t.lian their bases; centrodorsal dark olive with the center yellow; 

 cirri light yellow, slightly darker dorsally than ventrally. 



{h) Blue green. 



(c) Purple, the pinnules with yellow tips. 



{d) Brown, shading into green at the middle of the arms; tips of the arms 

 yellow. 



