NO. 2.] DESCRIFl'ION OF THE FOSSILS- 103 



has a thickness of more than 6 mm., and the distance between the septa 

 thus becomes 10 mm. or more. These are dimensions which are scarcely 

 surpassed by the largest individuals known of Belemnites giganteus Schlotli. 

 E. T. Newton mentions phragmacones of large species in phosphatic no- 

 dules from Windy Gully (1. c. p. 501), without being able to contribute any- 

 thing towards their determination. 



Belemnites sp. (cf. Beyrichi Opp.) 

 PI. I. figs. 22, 23. 



cf. 1856. Belemnites canaliculatus gracilis F. A. Quenstedt. 'Der Jura', p. 



484. PI. 65, figs. 23. 



1857. Belemnites Beyrichi A. Oppel, 'Die Juraformation' 61, No. 1. 

 1870. Belemnites Beyrichi F. ROmer, 'Geologic von Oberschlesien.' p. 228 



PI. 17, figs. 31, 32. 



1870. Belemnites Beyrichi M. Neumayr, 'Die Cephalopodenfauna der Oolithe 

 von Balin'. Abhandl. d. K. K. Geolog. Reichsanst. Wien 

 Bd. V, H. 2, p. 25.) 



There are numerous fragments of guards (without alveoles), for the most 

 part badly preserved. They belong to a species of Belemnite with a long 

 slender, slightly club-shaped guard. It appears from several specimens (e. g. fig. 

 23) that the guard diminishes somewhat towards the alveolar region. Poste- 

 riorly the guard is gradually produced to a long apex. Unfortunately the 

 apex is never preserved intact; in fig. 23, to judge from the course of the 

 lines of growth, it is drawn too obtuse. 



The transverse section of the rostrum is circular, or nearly so. The api- 

 cal line is central or very slightly eccentric. 



Grooves are not observable in pieces corresponding to fig. 23. 



A very much weathered fragment was found together with the figured 

 specimens, showing the beginning of a groove, also a central axis and con- 

 centric radiation. Judging from the direction of the lines of growth, this 

 groove deepens towards the alveolar region. 



If the above-mentioned fragments belong to one species which is very 

 probable this species might best be compared with Belemnites Beyrichi 

 Opp. of the group of the "Hastati" (Zittel). The pieces generally agree well, 



