GRAPTOLITES. 67 
C. SPECIES WITH NUMEROUS SIMPLE STIPES FROM A SINGLE AXIS, IN BILATERAL 
ARRANGEMENT. (Other species known only as simple stipes.) (Sub-genus 
Diprion, Barrande; Diplograptus, McCoy.) 
Genus RETIOGRAPTUS, Hall. 
Plate. Figure. 
R. tentaculatus eeeereeeoeseeesaseose8e 00080 14 eoese 6-8 
D. SIMPLE STIPES WITH QUADRILATERAL ARRANGEMENT OF PARTS. 
Genus Puytiograptus, Hall. 
Plate. Figure. 
Eeatiy PLS matetel siefalel oie el/ajinlelaials\ aha) eheteferelaletstayete LOreis/a/c'ohtoy 11 
NCOs oabondeooadoneapoosouGo0HO NS noon EKO) 
ANNE 55 00 0000 cond dogoonoCoaDdnooDcoDO®) Unoon | IEG 
ANGUStIfOlIUS weeacecscceeccccceceeseelG «se- LI-21 
EK. SPECIES HAVING STEM-LIKE AXES WITH NUMEROUS IRREGULAR RAMIFICATIONS. 
Genus Denprograptus, Hall. 
Plate. Figure. 
PME EUG SSH cveiessicrsiovoyapabenerern miaraielerotatelorevslen Tad weirsie) 012 
ALE RCLO SUS! Ai stctaraicielv rene tars cusavereveiersterersraiate eel | rejictey Maa: 
CINE ERG bob ConU a gOo Bob panodbe coo nciel ilemgcor ars) 
SIMI UILS hose roiee never felisveieies fevetolesreialeiwiatsiolerel efor ommlnkiuencfetaye 5 
CROCUNS DUOC ROO OOOO CLO ODEO Oe Ione OG 2 Ll mS cna | 
EMULE OSS orale slolcteelseie sieleselers eiaisielaren Lite acer | 1y (O569 
GHEMCWES, co SgnoouncD NG oe 1 
5 
LACTIC aelaieieysrelefsyelerelorelsles 
eeoeeeoeeve eee eo 18 OOO 
eeoeesenrteaoed 18 eecne 
F, SPECIES WITH FLABELLATE OR FUNNEL-SHAPED FRONDS, THE BRANCHES OF WHICH 
ARE CONNECTED BY REGULAR DISSEPIMENTS GIVING A FENESTRATE STRUC- 
TURE, OR BY UNFREQUENT AND IRREGULAR TRANSVERSE BARS, AND SOME- 
TIMES BY AN ANASTOMOSING OF THE ADJACENT PARTS OF THE BRANCHES. 
Genus CaLLoeraptus, Hall. 
Plate. Figure. 
OSele oan aiiatratatatera acces olsjale sicwalaaleteiaars 19 eooo 1-4 
Saliterimmyyverteyterctsiciecesaavs avercveudiareunerees 19 eoee 5-8 
Genus Dicryonema, Hall. (Grapropora, Salter.) 
Plate. Figure. 
PD) Innes ular iseyreatlaeiieeiens =< sisie\aretemeinicis U2 Oi seit, lolooe 
HOWE, ooootodgsoudoboocodsdGdounED ZO) “cea5) Be 
QuadrangUlarigncsiaccvecsccs erences 20 
eeoeseo 5 
Murrey. jtelattatetsteistare iaiets shatayateleraiel selo/cteho 6 
