KM M:|HM | |; \.. |; \, | |, 



;.- BACULINA, -I'". i,. 



Shell M rai^h;. | mill I conical ; si it II lev i .!' -c| it :i :i i >u if i >nii< In I 

 |.ilir>. tool hed ;it kl-c. 

 ^ '|'\VM -pccie->. .1 lir:i--ic. Lo\\er < 'halk. A,'"/ 1 "/"'. 



r.. \i;< i \i;i.\. Quenstedt. Pi. loo. DO-. ;.i T. 



J-nus RHABDOCERAS, Haoer. 



Shell straight, orthoceratoid, strongly sculptured; >epta with 



roiui(lr<l l<>!' 



One s|>ecie->. Alpine Trinssie. (fi-mumi/. 

 \\. Si B88II, Il.-iuer. PI. I 00. li^. 513, -"> I I. 



BACTRITES, San.llicrgcr. 



Shell st nii^ht : sutures lolied. 

 Three species. I>e\ OIUMII. German //. 

 \\. (;RACII,IS. S.-mdl. 1*1. KM), li^. .")!;"). 



i.-nus TOXOCERAS, .rori.. 



Shell horn-shuped <n' eiirveil : the six lohe- :ind -addles ,!' t.lif 

 siitnre> >inij)ly creiiuL-ite-l ; hist ch.-inil)er largo. 



Twentv species. N e< tcoiniaii. /< T /v///iv. 



< 'oiinectcil with (Iriori'rti* and Am-i/lnn-rd* lv iiiiinrnms in- 

 termediate forms. 



T. IJITI I'.KKi I LATI S. d'Ol'l). Tl. 100, tio". .")^."). 



<J.-nus HAMULINA, d'Orb. 



Differs from //amitf* in IMMIILI only once In-lit upon itself, not 

 in contact. Perhaps should not he separated from 



Twenty spe,-ie>. Neocomian. Frn, ,<>'; (j.-iult (''.}. 

 II. TUINOT.OSA. d'Orh. PI. 101. tiu. 535. 



i- HAMITES, rarkin>Mii. 



Shell conical, hook-shaped, lient n|>on itself more than onc 

 the coiir>e> v,.p :n -;ite. 



r riiirty--iu-ht ^.ecies. (Mialk. E/> /'>/,>; s. America. 



II. \T1K\I ATI S. S.iwl.. PL 101. li.lT. ">.".' 5. I 

 II. . VI.IM.RACKIS. DelV. PI. 101. fl-. 534. 



