(A U CONIFEROUS A(JK. 13 



because a living species .if that ^roup was found at tin- CajM? of Good Hope '. Or. 

 if a naturalist should dredge up from the bottom of sonic unexplored sea, a living 

 Ammonite, \\oiild l'ala-ontolo^i>ts admit his ri^lit to change tlic name of tin- genus '. 

 The oilier instance where we have restored an older name, is in adopting 

 J:'/]>/tiiIii/in, Montfort, instead of J^li/xlonii II, t, Lamarck, Mont fort's name having 

 lieeu published in Isos, in his('onch\l. S\>t.. \"ol. I, pp. 14-15. It is true, not 

 \er\ much can lie said for his figure or di-scriiition, hut as he refers to the figures 

 and description of Yon Fitdiell and Yon Moll, so that later authorities do not 

 hesitate to identify the t\pe of his genus with : s of /'o///.-.Vm<//, I.amarck. 



which name was not published until IS'J'J, we feel hound to adopt his name. The 

 fact that he -,'ave some ti\e or six oilier generic names to other species and varii ti. ^ 

 of the same genus on subsequent pages of liis work, does not alter the rase, for it 

 matters not how many names an author may give a genus, we are bound to adopt 

 hi> lii-st. name, if not pre-oceupied, and his t\pe can lie identified, and (lex's not 

 belong to a previously described genus ; the subsequent names of course falling 

 into the list of synoimns. 



Genus FUSULINA, FISCHER. 



Sg*on. Futvlino, FiariiPH, Oryet. du Gonv. de Moecoo, 1837, p. 126. D'OBDIO.IT, ID Mun-liiMm. Wrneuil A Kejrser- 



ling's Geol. RUM. II (part ill, Pal.), 1845, p. 15. Cosu., KU-iuent. de Geol. Strl., II, 18f.2, 109. 

 liorrUt (ap.), EiiBE.MiKuii, Berliu Moiuttsb. 1842, 274 (not Montfort, 1808). 

 Elym.funa, a spindle. 

 Type. Ftaulina eylindriea, FISCHER. 



Shell regular, equilateral ; fusiform, cylindrical or subglobose, according to its 

 greater or less elongation in the direction of the axis, sometimes constricted 

 around the middle; symmetrically involute so that each turn envelops all the 

 preceding at all stages of growth. Surface with nearly parallel, subequidistant 

 furrows coincident with the septa within, and running in the direction of the 

 axis. Aperture a narrow slit confined to the central region. Foramina passing 

 through the external walls of the chambers, of moderate size. Septa compara- 

 tively narrow in the middle, and gradually widening towards the extremities; 

 apparently composed each of a single lamina; regularly undulated laterally, so as to 

 partly subdivide each intervening chamber on each side of the broad mesial avenue 

 (connecting the different chambers) into a series of small alternately arranged cells 

 connected together by narrow galleries. Internal canal system, and "intermediate 

 skeleton" apparently wanting. 



The shells of this genus present the various modifications of form, and much the 

 general appearance of the genus J/<W//m, from which, however, they can be 

 ily distinguished by their aperture consisting of a single mesial slit, instead of 

 a single or multiple series of round or oval openings extending along the entire 

 length of the shell. They also differ entirely in their internal structure, the differ- 

 ent chambers in I-',I*H/;II>I being connected with each other by the single broad 

 slit corresponding to the aperture in the last or outer septum, and not sub- 



