Thk Crinoiiis from Dk. S. Hock's Ivm-kihtiox io .Iai-an I!ll4. .")7 



two types would also bo easy to koop apart if it wore a ciuestion of 

 systemalieally proximal forms, for, as is shown alio\o. such forms 

 arc to be found, no matter how the di\isioii is made. On tlic same 

 specimens the combs seldom or never vary in ooeurrence on diffei-ent 

 arms and so tu this extent they (dfei' a better distinguishing featuic than 

 the division-scries. Tiie sub-di\ ision pi-o](osed above is slill. howc\er. 

 impossible to eariy out because of the incompleteness of (he pi-ece- 

 ding species-descriptions in the statements as to tiie appeai-ance and 

 occurrence of combs. So much, liowever, can be said, (hat to the 

 first mentioned genus might be referred the genus Comaster sensu A. 

 II. Clark, Vania (pro parte) and eventually Comaiithinu (and Coinan- 

 llu'iia) pro parte. To Voiinmilius sensu nova should be referi-ed Coman- 

 therid, Coiiianlliiiia (p.p.). CmiKDitJniH [CenoUa] and Vania p.p. 



Young', Comasterids ti-om the Benin Islands: 



From St. 44 (1 ). 45 (15), 47 ((3), 50 ( 1|, 5:^ (1). 54 (1), 



(il (1) — 20 specimens. 



Comatella sp. 



.S>. 1 (St. 5:5) ('. XI S— 9; 2— 2..-. mm. 3'' segment L -- 2 ' 2 X br. 

 Terminal claw curved, longer than the penultimate segment. 



B — s projecdng between the R — s as small corners. R — s nar- 

 row bands. 1 Rr 1 h ^.3 X br. Arms X, + 15 mm. Syzygies with 

 an interval of \\ (d)lique ai'ticulati(Mis. The segments some\vha( folded 

 outwards ami s|iiiiy. 



P, with a comb of 5 — fi T. V., and Pg absen(. 



Disk smooth, dark-brown. Mouth central. Anal fumiel small, 

 no( papillated. 



Comatella, sp. juv. or the young forms of a large Comissia sp. 



Sjj. I (St. 45} (' XIX 14— Hi; () — S mm. 4"' segment the longest, 

 L= 2 ' 2 X br. Dorsal spine from the 4''' segment. — [v*-s narrow bands. 

 1 Br I h '4 br. laterally fi'ce. .Axillary h '2 X br, forms with the 

 pi-eceding segment a low synailrial (ubercle. Br 2 on the outer side 



.\ova Acta Keg. So<-. Sc. Ups.. Ser. 4. Vol. 5. X:o 6. Injin-. '» s 1922. .s 



