474 Dr. Grünberg, Dr. Lucas und Dr. Thiele: Bericht über die 
S. atlanticus M. Edw. (8. frisii Kr., S. pacifieus Stimps.). 
Is ancylops Kr. S. cornutus Kr. 
S. ovatoculus Bate. s longispinus Bate 
S.inous Faxon. 
£) The 1st joint in the antenn. ped. considerably or much longer then 
the third. 
1. The 2nd a. 3d joints in the antenn. ped. stout. 
S.robustus Smith. — 8S.japonicus Bate (S. mollis Smith). 
S. bisuleatus Wood-Mason (S. phorcus Faxon, olim). 
2. The 2nd a. especially the 3d in the antenn. ped. slender (areticus-Gruppe). 
je arcticus Kr. (S. meyeri Metzger, S. magnificus Chun). 
S. rinkii Kr. vix Bate. 
S. dissimilis Bate. 
S. mediterraneus n. Sp. 
S. prehensilis Bate. S. nasidentatus Bate. 
S.kröyeri Bate. (S. rinkii Bate vix Kr.). 
S. dorsospinalis Bate. S. laeviventralis Bate. 
| S. laterodentatus Bate. S.rubroguttatus Wood-Mas. 
B. On the extr. br. of urp. the eiliated part occupies more than the half 
of the exter. margin. 
S. corniculum Kr. (S. laciniatus Kr.). — utringuedens Bate. — longi- 
rostris Bate. — Hierher ferner: praecuilus Bate, S. semiarmis Bate, 
S. longicaudatus Stimps., remipes (Stimps.) u. 8. (Sciacaris) telsonis Bate 
— Alles nur Larvenformen. 
Gruppe II. Mxp.° considerably or much longer siehe p. 390 dieses 
Berichts. 
A. The adult a. the older larvae with 2 branchiae above trl.?, and the 
6th point of the mxp.? divided into 5 subjoints. The adult with a comb of very 
numerous short spines along the one margin of the 6th joint a. of the distal 
part of the 5th of mxp.°. The larvae w. short eye-stalks. 
S.henseni Ortm. 
| S. sargassi Ortm. 
B. The adult a. the old. 1. w. 1 branch. and a lamella above trl.®, a. the 
6th joint of mxp.°? divided into 4or 6 subjoints. The adult without any comb 
on mxp.?. Larvae w. moderately long or very long eye-stalks (edwardsii-Gruppe). 
a) On the ext. br. of urp. the exterior margin is ciliated in the whole 
length or (in the larv.) at least in c. "/,, of the length. 
S.edwardsi Kr. 
S. oculatus Kr. 
b) On the ext. br. of urp. the ext. marg. is eiliated at most in ”/, of the length. 
«) The same ext. marg. is in the larvae ciliated at least in 3/, in the 
adults in more than */, of the length. 
S. vigilax Stimps. H.J.H. S.penerinki Bate, H.J.H. 
In parvidens Bate. 
Anmerk.: Zusammengehörige, aber verschied, Stadien einer Sp. sind mit 
{ bezeichnet. 
