i'i OLAF HOLTEDAHL. [SEC. ARC. EXP. FRA.M 



or are without stratigraphic value, the question is not yet settled. Dr. 

 <i. \V. |J:K in his paper on the fossils from the "Hecla" and "Fury" 

 collection^. (I. c, p. i2l>:{| mentions that a part of the collection may be 

 from the highest member of the Niagaran, the Guelph. 



I have mentioned the pfooca-fauna here because in SCIIKIS material 

 from B I found a form, which although not identical, shows a ver\ 

 -Irong relation to Lissatri/fia plwca. There is a possibility that the 

 pfcoco-fauna may he younger than the Niagaran and come near to 

 I he Keyser. 



I have myself had an opportunity of seing collections from one of 

 the L. phocti localities, viz. Beechey Island. I have before me a collec- 

 tion made in the autumn of 1903 during the Voyage of the "Gjoa". 

 Captain ROALD AMUNDSEN, through the Northwest Passage, and further- 

 more I have inspected in the Peabody Museum a collection from the same 

 locality made during the cruise of the '"Neptune" 19031904. The first 

 collection contains, besides numerous and very nice specimens of Lissa- 

 fr/i/Ki ])]u><( the ordinary species: Acervularia austini SALTER and 

 Street odes picthorni SALTER and a Favosites. 



As to the last mentioned collection there is also very little obtain- 

 able from it as very few fossils, that would be available for fixing the 

 age were found. The collection mainly contains poorly preserved gastro- 

 pods, besides some few brachiopods and ostracods. The only other brachio- 

 pods, besides the L. phoca, that occur, is a small Meristella-Yike form, 

 that is not of great use for stratigraphical purposes. Of great interest 

 i- the occurrence of a large, elongate Leperditia, which seems to be 

 entirely like the Lepcrditia elonyata WELLER, as far as can be seen 

 Irom the illustration of this fossil, a form known exclusively from the 

 Ki-v-t-r of Maryland and form the Rondout of New Jersey. 



Another fact which may indicate that the phoca-hwh represent 

 relatively \oimg ones is the stratigraphical conditions on Beechey Island 

 as far as they can he judged from the report of "The Cruise of the 

 Neptune". On \>. -2~2\ we read: - - Similar conditions prevail 



at liechey Island, where a large collection of fossils was obtained 

 Irom the lower limestone lied>, while others picked up loose but. evidently 

 fallen Irom the cliffs above, showed that the upper beds passed close 

 to if not into the Devonian ". By the lower hrd.x is here menl the 



common rich fo^il-bearin- limestone with the )>hoc(i-\n\ma. 



This remark is of -.-pecial inleiv-l for another iva.-on also, namely 

 b'-''.-m>e ai g the material I'rom I !e. ( -|i.-y Island brought by the "Gjoa- 



