INDEX OF SPECIFIC NAMES. 



1347 



arcuoliratum Orthoceras . 



arcuosus (a) Clorinda, Pentamerus. 



arenaria Holopea, Murchisonia, Pletho- 



spira. 



arenatum Endoceras. 

 arenicola Isotelus. 

 areolata Aspidopora, Spatiopora. 

 arethusa Stricklandinia, Strophomena, 



Syntrophia. 

 areyi Barrandella, Clorinda, Dictyo- 



nema, Eotomaria. 



argentea Camarotcechia, Rhynchonella. 

 argentinus (a) Arethusina, Illeenus, 



Monticulipora, Thysanopyge. 

 argenturbica Rhynchonella, Rhyncho- 



trema. 



argo Bellerophon, Oxydiscus. 

 argutus (a, um) Diploclema sparsum, 



Glyptocrinus, Modiolopsis, Monograp- 



tus, Pachydictya, Ptilodictya, Stelidi- 



ocrinus. 



argylensis Hormotoma, Murchisonia. 

 arisaigensis Murchisonia. 

 aristides Cyrtoceras. 

 arkansanus (a) Cyphaspis, Dalmanites, 



Dalmanites (Synphoria), Dicranopeltis, 



Odontopleura. 

 arkansasensis Dicranograptus nichol- 



eoni, Dicranograptus ramosus. 

 armanda Orthis, Syntrophia. 

 armatus (a, um) Arthroclema, Bathyu- 



rus, Bumastus, Helopora, Heterocy- 



stites, Illsenus, Isochilina, Isochilina 



pygmaea, Leperditia, Lumbriconereites, 



Plethopeltis. 

 armosus Eucalyptocrinus, Glyptaster, 



Glyptocrinus, Siphonocrinus. 

 arnheimensis Rhynchotreta dentata. 

 arrectus (a) Aparchites, Cyrtia expor- 



recta, Cyrtia trapezoidalis. 

 artemesia Hormotoma, Murchisonia. 

 arthracanthus Glossograpsus, Glosso- 



graptus. 

 articulatus (um) Cyathophyllum, Ma- 



dreporites. 

 articulosus Calceocrinus, Castocrinus, 



Heterocrinus. 

 arundinaceus Dicranograptus, Grapto- 



lithus, Mastigograptus. 

 aryballium Astylomanon cratera. 

 ascialis Arabellites. 

 ashmani Orthodesma. 



asper (a, um) Acanthoclema, Batosto- 

 mella, Callopora, Chasmatopora, Cru- 

 ziana, Dekayia, Eucalyptocrinus, Fa- 

 vosites, Fenestella, Gorgonia, Hetero- 

 spongia, Holocystites, Leptsena, Lio- 

 clema, Lophospira, Monticulipora, Mur- 

 chisonia, Paleofavosites, Phylloporina, 

 Plectambonites sericeus, Rusophycus, 

 Spatiopora, Subretepora, Terebratu- 

 lites, Trematopora. 



asperate striata Chasmatopora, Phyllopo- 

 rina, Subretepora. 



asperatus (a) Archseocrinus, Conularia, 

 Deocrinus, Spirifer, Spirifer (Eospiri- 

 fer), Rhodocrinus. 



asperostriatus Straparollina, Straparol- 

 lus. 



asperula Crania, Monticulipora, Monti- 

 culipora we therbyi, Petigopora. 



aspinosus Dalmanites. 



astartaeformis Ctenodonta, Tellinomya. 



astraformis Plasmopora, Porites. 



astragoletes Asaphus. 



astrodistans Clathrodictyon vesiculo- 

 sum. 



atava Eoorthis, Orthis (Plectorthis), Ra- 

 finesquina, Strt)phomena. 



atheroidea Lissatrypa. 



atlanticus (a, um) Beyrichia, Eccyli- 

 omphalus, Endoceras, Harpides, Ma- 

 clurea, Maclurites. 



atlas Cyathophyllum, Homalonotus. 



atratus Girvanella, Strephochetus. 



atrypoides Eoorthis (Orusia) lenticula- 

 ris, Orthis lenticularis. 



attenuatus (a, um) Acrotreta, Ambony- 

 chia, Aphetoceras, Calceola, Cleiony- 

 chia, Cliodernta, Ctenodonta, Cymato- 

 nota, Cyrtospira, Lingula, Pterotheca, 

 Rhizophyllum, Rhopalonaria, Tellino- 

 mya. 



atticus Orthoceras. 



attritus (a) Chsetetes, Dekayia, Monti- 

 culipora. 



auburnensis Platystrophia ponderosa. 



auconini Tarphyceras. 



augusta Metoptoma. 



augustina Lophospira, Murchisonia, 

 Murchisonia (Hormotoma). 



aulema Endoceras, Nanno. 



auloporoides Alecto, Proboscina, Stoma- 

 topora. 



