30 OLAF HOLTEDAHL. [sEC. ARCT. EXP. FRAM 



as the Loxonema Rossi described by Haughton in tbe Journal of the 

 Royal Dublin Society, vol. 1 (p. 240, pi. 5, figs. 6, 8—11) from Beechey 

 Island specimens. In the list of fossils which H. M. Ami has published in 

 Low's report on the Arctic voyage of the "Neptune" (Ottawa 1906) Loxo- 

 nema rossi is quoted, p. 320, from a bluish grey limestone of the same 

 locality. In a collection in Peabody Museum in New Haven I have had 

 an opportunity of examining specimens of this foi'm, (labelled by Dr. Ami), 

 and I have found them to be extremely similar to the specimens col- 

 lected by ScHEi. A certain conclusion as to the identity of the forms, 

 however, cannot be made with no better preserved material that which 

 is now in my possession. 



The specimens in the collection attain a maximum length of 13 — 

 14 mm. but are usually much smaller. The most complete ones show 

 about 9 volutions, yet oiiginally there were still more. The height of 

 the volutions is about two thirds of the greatest width. In one specimen 

 with partially preserved surface an indication of a longitudinal band on 

 the lower volutions can be seen, showing that the foi'm is no Loxo- 

 nema, but probably belongs to Hormotoma. 



Occurrence: B, lower part. Reindeer Valley. 



Hormotoma (?) sp. 

 PI. VIII, fig. 12. 



An imperfect cast, latei-ally somewhat compressed, of a form that 

 cannot be more closely determined. We find in literature several forms, 

 known as casts, that .show much likeness and probably are also 

 of about the same age. Amongst others come into consideration the 

 Loxonema (?) sp., described by Wellek from the Manlius in the New 

 Jersey report, pi. 22, figs. 9—11 especially (fig. II is very like) and then 

 Loxonema sp. figured by Ohern in the Maryland Devonian, pi, 79, 

 fig. 8. In the description Ohern, p. 468, also mentions the resemblance 

 to the New Jersey form. A third form that is possibly related, is the 

 Murchisonia sp., mentioned by Salter in the Appendix to Sutherlands 

 report in pi. 5, fig. 18. In Haughtons article on the Arctic fossils brought 

 home by M'Clintock (Journal Royal Dublin Society, vol. 3, 1860, p. 55) 

 this form is named Loxonema Salteri. It is reported to occur together 

 with Atrypa plioca on Cornwallis Island, in Assistance Bay, and on the 

 West coast of Boothia Felix. It is necessary, however, to see the speci- 

 men or a better illustration than Salter's old one before classifying this 

 species with certainty. 



Occurrence: B, lower part, Reindeer Valley. 



