130 
THÉEL, NORTHERN AND ARCTIC INVERTEBRATES. I. SIPUNCULIDS. Zz 
Plate XV. 
Figs. 207—208. Phascolion strombi (Monr.). Bohuslän. 
Figs. 207—208. Front views of the tentacular crown. 9. 
2095 
Fig. 209. Phasecolion tuberculosum THÉEL. Bohuslän. Koster. 
Front view of the tentacular crown. 49. 
210—212. Physcosoma Lovenii (KOREN and DANIELSSEN). Type from Bergen. Defective. 
ig. 210. 
213. 
Front view of the tentacular erown. 15. 
es. ciliated sense pad, defective. — m. mouth, — t. tentacles. — tf. tentacular fold. — D 
dorsal side. — V. ventral side. 
The same seen from the dorsal side. 15. 
o. the opening of the ftentacle-erown, where it passes over into the tentacular fold. Other 
letters as before. 
Side view of the same animal. 15. 
c. fragment of the annular collar. — bh. rings of hooks. — sp. smooth space between the 
tentacular fold and the annular collar. — D. dorsal side. — V. ventral side. — Other letters 
as before. 
Fig. 213. Sipunculus priapuloides KOREN and DANIELSSEN. Bergen. 
Front views of the tentacular crown. 15. 
Figs. 214—215. Omnchnesoma squamatum (KOREN and DANIELSSEN). Trondhjem Fjord. 
Figs. 214—215. Front views of the tentacular erown of two different animals of almost the same 
size. 30, 
Tryckt den 27 maj 1905. 
Uppsala 1905. Almqvist & Wiksells Boktryckeri-A.-B. 
