1862.] M. O, A. L. MORCh's review of the VERMETIDiE. 83 



droides norvegica, Gimth., — the variety described by Montagu as 

 Serpula reversa, Mont. = *S'. contorta, Brown, 111. t. 2. f. 4.=Hete- 

 rodisca reversa, Fleni. It is a true Serpulidous shell. 



3 a. Stephopoma, n. sp. (See P. Z. S. 1861, p. 148.) 

 In the collection of Charles VIII. is preserved a lid distinctly 

 spiral, of a brown colour, convex inside, and provided outside with 

 long bristles, very like those of Stephopoma senticosum, Morch (Proc. 

 Zool. Soc. 1861, pi. 25. f. 2), but having all the lateral spines simple, 

 without any accessorial spines. It is mounted on mica, and labelled 

 by the late Rev. Mr. Lyngby as the lid of a Serpula found on the 

 egg-case of Raia batis (in Danish "Tserbe"). That it really was 

 found in the Kattegat, near Gilleleie, which was his parish, is probable 

 from the circumstance that he has added the Danish specific name 

 to a fish of which several congeneric species are described in his MS. 

 " Rariora Codana" with Danish specific names. Unfortunately I can- 

 not find his diary, in which it is more particularly described according 

 to the ticket. The study of the Worm-tubes is so neglected that I 

 do not regard it impossible that a Vermetid may be found in the 

 Northern Seas. Perhaps it may prove to be the Spirorbis striatulus, 

 Brown (111. pi. 1 . f. 59), which is from Dunbar, in Gen. Bingham's 

 collection. 



3 5. Stephopoma ARCHiMEDis, Konig. 1842-44. 



T. subcompressa, spirata ; anfractibus quinque, ultimo remoto ; 

 superficie plicato-rugosa ; orificio ovali. 



Serpula archimedis, Konig, Carb. p. 57, t. 9. f. 6. 

 Serp. spinosa, Kon. Carb. p. 58, t. 9. f. 8 (T. juvenilis). 



T. depressa, planorbiformi, anfractibus quatuor, contiguis, sensira 

 incrassatis, spinis in quincunces dispositis, obductis (De Konig). 



Hab. Fossil in the Mountain Limestone, at Vise {Konig). 



The supposed young shell is from the clay of Tournay. The 

 form of the aperture and the flexure of the strise of growth are quite 

 that of Stephopoma. The sculpture of the supposed young shell can 

 only be compared with the embryonic shell of Stephopoma senti- 

 cosum, Morch (Proc. 1861, pi. 25. f. 14), which circumstance has 

 guided me in giving it the present place. 



It is probable, from the appearance of a group of Vermeti on a 

 Chama (in the Museum Regium), that Siphonium textum, M., S. 

 scaphitella, M., and S. pictum, M., are different ages of S. subcre- 

 natum, Lam., corresponding to the different forms of Siph. nebu- 

 losum, Dillw. 



Erratum, P. Z, S. 1861, p. 180, line 6 from bottom, for squamas 

 confertas fornicatas amplectentibus, read squamis confertis forni- 

 catis amplectentibus. 



