10 Dr. R. Greeff on the Annelid Genus Spherodorum. 
of these appendages, which are placed at regular intervals, and 
form a transverse row upon the back and another on the belly. 
Between the large cutaneous appendages there are numerous 
small ones irregularly scattered over the body. Feet simple, 
containing a bundle of composite setz. 
1. Spherodorum flavum, rst. 
Annulat. Danicor. Conspectus, fase. i. p. 43, pl. 1. fig. 5, pl. 6. figs. 92, 101. 
Archiv fiir Naturg. 1844, 1. p. 108. 
Corpore 14" longo, ?” lato, teretiusculo, flavescente, utringue 
fere squaliter attenuato, segmentis 150, duplo latioribus 
_ quam longis, papillarum 12-16 in margine anteriore capitis, 
duabus paulo longioribus; oculis quatuor quadratum forman- 
tibus; pinnis abbreviatis, 7-8-fidis, setis 5-7 uncinatis. 
The preceding character of (irsted’s species must certainly 
undergo some alterations in accordance with the above observa- 
tions. As, however, S. flavum does not appear to have been 
observed by any one since Cirsted, I leave his description unal- 
tered for the present. It is possible, moreover, that there is no 
specific difference between S. flavum and S. peripatus. 
2. Spherodorum peripatus, Grube. 
(Die Familien der Anneliden, p. 67.) 
Pollicita peripatus, Johnston, Ann. Nat. Hist. vol. xvi. p. 5, pl. 2. figs. 1-6. 
Spherodorum peripatus is the species investigated by Clapa- 
rede and KGlliker, as has already been repeatedly stated. 
3. Spherodorum Claparedii, sp.n. PI. I. 
I venture to name the new species described in detail in this 
paper after the indefatigable observer who has done so much for 
the natural history of the Annelida. 
EXPLANATION OF PLATE I. 
Fig. 1. Spherodorum Claparedii, magnified about 40 diameters. 
Ig. 2. Foot with the bundle of composite uncini, magnified 300 diameters. 
Figs. 3-9. Developmental stages of the glandular appendages, magnified 
about 600 diameters. 
Figs. 10-14. Developed glandular capsules with the tubes contained in 
them, and opening externally by a fine orifice in the wall of the 
capsule; magnified about 600 diameters. 
