468 



MISS G. L. ELLES ON THE GEAPTOLITE [Aug. 1898, 



Fam. DicHOGRAPTiD^ (Lapw.). 



G 



1. 



'Gem 



Bryograptus, Lapw. 



Sp. (a) Br. ramosus, Brogger, var. cumhrensis noV> 



(b) Br. Kjerulfi* Lapw. 



(c) Br. cf. Callavei, Lapw. 

 Genus 2. t^lonograptus. Hall. 



Sp. (a) Cl.flexilis{ILsM). 



(b) CI. cf. tenellus* (Linnarsson). 



(c) a.sp. 

 3. Loganograitus, Hall. 



Sp. L. Logani, Hall : 

 various types. 

 Genus 4. Temnograptus, Nich. 



Sp. T. muW'plex, Nich. 

 Genus 5, Pleurograptus, Nich. 



Sp. PI. vagans, Nich. 

 Genu« 6. Trochograptus, Holm. 



Sp. Tr. diffiisits,^ Holm. 

 Genus 7. Pterogj-aptus, Holm. 



Sp. Pt. sp.* 

 Genus 8. Schuograptus, Nich. 



Sp. Sch. reticulatus, Nich. 



Sch. tardifurcatus, sp. nov. 

 Genus 9. Trichograptus, Nich. 



Sp. Tr. fragilis, Nich. 

 Genus 10. Bichograptus, Salt. 



Sp. B. octohrachiatus (Hall) : 

 various types. 

 B. separahis, sp. nov. 

 Genus 11. Tetragraptus, Salt. 



Sp. (a) T. Bigshyi (Hall). 



(b) T. cruci'fer (Hall). 



(c) T. Headi (Hall). 



(d) T. pendens, sp. nov. 



(e) T. PosUethwaitii, sp. nov. 



(f) T. quadrihrachiahts (Hall). 



(g) T. serra (Brongn.). 

 Genus 12. Pkylloqraptus, Hall. 



Sp.\a) Ph. Anna, Hall. 



(b) Ph. angustifolms, Hall. 



(c) Ph. ilicif alius, Hall. 



(d) Ph. , var. grandis nov. 



(e) Ph. typzis, Hall. 

 Genus 13. Didymograptus, M'Coy. 



Sp. (a) B. offinis, Nich. 



(b) B. bifidus (Hall). 



(c) B. extensus, Hall. 



(d) B. fasciculatus, Nich. 



(e) B. gibbertdus, Nich. 



(f) B. gracilis* Tornq. 



(g) B. indentus (Hall). 



(h) B. , var. nanus, Hopk, & Lapw. 



(i) B. Nicholsoni, Lapw. 

 (k) B. 7iitidus (Hall). 

 (1) B. patuhis (Hall). 

 (m) B. V-fractus, Salt. 

 (n) B. V-fractus, var. volucer, H. O. Nich. 

 Genus 14. Azygograptus, Nich. & Lapw. 

 Sp. (a) A. Lapworthi, Nich. 



(b) A. ccelehs, Lapw. 



(c) A. suecicus* Moberg. 



