88 THE CAMBRIAN. [tffru&L 



uotice of the development of the young of this species. Under Pty- 

 choparia, Liostraeus Unnarssoni Brogger is identified from the St. 

 John series. For the narrow form he proposes the variety alata, and 

 this is followed by a description of the development of the young. To 

 the genus Solenopleura of An gel in he refers the Conocephalites robbi of 

 Hartt, and gives a description of the development of the young as far 

 as known to him. A more extended description of Solenopleura acadica 

 of Whiteaves is given, and the variety elongata proposed. 



In the second paper by Mr. Matthews on the classification of the 

 Cambrian rocks in Acadia 1 the species Obolus pulcher is described 

 from the base of Band B of division 1 of the St. John group. In the 

 middle of the band Mr. Matthews recognized an Agraulos and at the 

 base an Ellipsocephalus. This paper also contains a discussion of the 

 Olenellus fauna as found in Nevada. In a paper read later in 1889, 

 entitled " On the Cambrian Organisms in Acadia," 2 Mr. Matthew states 

 that he has found in this lower series beneath the Paridoxides zone a 

 species that recalls Fucoides circinnatvs (p. 384), the Obolus which was 

 described later, and undoubted examples of Platysolenites of Pander. 

 In mentioning the fauna and flora of the Paradoxides beds, he says the 

 basket sponges and the rod like sponges (?) are common to both this and 

 Series B. In all the tine layers of this baud species cf Protospongida3 

 may be found, but no examples of the typical Protospongia of the Par- 

 adoxides beds have been observed. A new species of Obolus and three 

 species of Lingulella are mentioned as being described in the paper, and 

 the Algre are represented by several different types, among which are 

 a Buthotrephis and a microscopic form parasitic on the latter organism. 

 There are also'some quite small oval forms, resembling Hydrocystium, 

 which may have been algoid. Among the new species of the Paradox- 

 ides beds is a little Platyceras. He says that Paradoxides pontificalis is 

 found to be a narrow, and P. micmac a broad form of Paradoxides hicksi 

 of Wales (p. 385). From stage 2. the Olenus beds, he reports abun- 

 dant remains of a large Protospongia, including Protospongia fenestrata 

 of Salter, and P. (?) major of Hicks, and another large species. From 

 the fossils which appear to have been placed in the upper part of divi- 

 sion 2 are some that have been found in Kennebecasis Basin of the 

 Cambrian rocks. These are Leptoplasti, allied to L. stenotics of Ang- 

 elin, Agnostus pisiformis, var. and Agnostus nathorsti, var. From 

 division or stage 3, the Peltura beds, he mentions two species, Cteno- 

 pyge (cf. C. flagillifer and C. spectabilis), Orthis lenticujaris, and a Ku- 

 torgina. At the bottom of the division Lingulella lepis and another 

 large species, L. ampla, var.? are found. These beds are correlated with 

 beds of Cape Breton containing species of Peltura, etc. (p. 380). 



In a paper by Mr. Matthew, entitled " How is the Cambrian divided ? 



__j — , — , __ ,. . . . . ■ — ■■ — 



' Canadian Record Science, vol. 3, 1869, pp. 303-315. * Ibid. , pp. 383-387. 





