121 
Serpula porrecta MULLER, Zool. Dan. t. 86 f. 7, 8 (non fig. 9, quz Hydroi- 
dem norvegicam refert, ut cl. MörcH recte monuit!) 
» vermicularis ABILDGAARD, Ibid. Tom. III p. 9 (p. p.) 
? Spirorbis porrecta DANIELSSEN, Reise 1857 p. 57; Reise 1858 p. 125. 
Serpula vermicularis ÓnsrED, Dyr ved Dröb. p. 17, sec. cit. Zool. Dan. 
"Lab:986! £975 08: 
Hab. passim in fucis, presertim intra rupes Theist- 
holmenses, Christiansandenses (MÜLL. mss. posthum.); A- 
BILDGAARD Z. D. III p. 9. 
248. Vermilia conica (Fl. Móncu, 1. c. p. 46. 
Hab. in sinu codano ad ins. Hirsholm (H. KRÓvER 
Mus. Havn.); etiam ad Britanniam. A precedente vix satis 
differt (MÓRCH). 
POMATOCERUS Pmnr. 
249. Pomatocerus trigueter L. MóRcH, 1. c. p. 403. 
Serpula triquetra SAns, Reise 1849. 
» » DANIELSSEN, Reise 1857 p. 56; Reise 1858 p. 124. 
» » ÖrsreD, Dyr ved Dröbak p. 17. 
Branchix speciminum in spiritu asservatorum viridi-coe- 
ruleo fasciatz. 
Hab. vulgaris in lapides et conchas, prof. 1—100 or- 
gylar., ad oras Scandinavia occidentales et boreales, e freto 
Öresund usque ad Waranger Finmarkie (S. LovÉN, Goös, 
DANIELSSEN, ÖRSTED, SMITT, IPSE). Cet. ad Britanniam 
.et Galliam. 
PLACOSTEGUS Pnn. 
250. Placostegus tridentatus J. C. FABR., MóncH, 
1. c. p. 414. 
Serpula triguetra Gusnerus 1768, Norske Vid. Selsk. Skr. IV p. 53 Tab. 
2 1 14. 
» = tridentata J. C. FABr1c1us, Reise nach Norvegen 1779 p. 385. 
» = polita Sars, Reise 1849 p. 84. 
» »  DANIELSSEN, Reise 1857 p. 56; Reise 1858 p. 124. 
Hab. in lapides, conchas, Lopheliam proliferam &c. 
