“CHINONEUS PLATE Il.
= &£ ALBATROSS TROPIGAL PAGIFIG Ex.
1899-1900 AM Westerren del
PLATE12. 1-12. Echinonéus cyclostomus Leske. 1.— Lantern seen from above, measuring 1.30 mm.
in diameter. 2.— The same seen from below. 3.—Thesameinprofile,height0.75mm. 4.—Pyramidandtooth,seenfromexterior,length0.85mm. 5.— The same seen from interior. 6.—Halfofsamepyramid,withouttooth,seenfromexterior. 7.— The same seen from interior. = 8.—Pyramidwithtooth,sameasFigure4,seenfromabove. 9.—Groovedtooth,b.seeninprofile,c.dorsalview,length0.62mm. -10.—Thebrace;a.seenfromabovewithepiphysisononeside,b.thesamefrombelo 0.44 mm. j 11.—Compass;a.seenfromabove,b.thesameinprofile,length0.62mm.long. 12.—Epiphysis;a.exteriorview,b.interiorview,length0.44mm. All the figures are from a specimen without spines measuring 4.19 mm.
PortAntonio,Jamaica,H.L.Clark,
“ALBATROSS TROPIGAL PAGIFIG Ex. 1899-1900. EGHINONEUS PLATE 12. AM. r Westersten del B. Meisel lith
+ 6 hpi pie Bee 7 e ° a 7 i] nots a rae te dae i oe
PLATE13. 1-6. Echinonéus cyclostomus Leske. t 1.—Interiorviewofactinalside,fromalcoholicspecimen,measuring4.40mm.long.Makem Paumotu_ Islands. ; : 7 2.—Actinalsideseenfrominterior.Testmeasuring27mm.long.MakemoIsland. 3.—Oddanteriorambulacrumwithpartoftherightandleftanteriorinterradialplates,: actinal system, seen from interior. , ¥ ; 4.—Interiorviewofmedianinterambulacralsutureinrightposterierinterambulac: stome, showing overlapping of plates. 5.— Odd anterior ambulacrum, near ambitus, actinal side, seen from interior. 6.— Ocular and abactinal ambulacral plates of odd anterior ambulacrum, interior v Figures3-6fromadryspecimen,measuring37mm.long.Mauritius. TheenlargementisidenticalinFigures3,5,6.