INDEX OF SPECIFIC NAMES. 



1347 



arcuoliratum — Orthoceras. 



arcuosus (a) — Clorinda, Pentamerus. 



arenaria — Holopea, Murchisonia, Pletho- 



epira. 

 arenatum — Endoceras. 

 arenicola — Isotelus. 

 are olata — Aspid opora , S pat iopora. 

 arethusa — Stricklandinia, Strophomena, 



Syntrophia. 

 areyi — Barrandella, Clorinda, Dictyo- 



nema, Eotomaria. 

 argentea — Camarotceehia, Rhynchonella. 

 argentinus (a) — Arethusina, Illamus, 



Monticulipora, Thysanopyge. 

 argentnrbica — Rhynchonella, Rhyncho- 



trema. 

 argo— Bellerophon, Oxydiscus. 

 argutus (a, urn) — Diploclema Bparsum, 



Glyptocrinus, Modiolopsis, Monograp- 



tus, Pachydictya, Ptilodictya, Stelidi- 



ocrinua. 

 argylensis — Hormotoma, Murchisonia. 

 arisaigensis — Murchisonia . 

 aristides — Cyrtoceras. 

 arkansanus (a) — Cyphaspis, Dalmanites, 



Dalmanites (Synphoria), Dicranopeltis, 



Odontopleura. 

 arkansasensis — Dicranograptua nichol- 



soni, Dicranograptus ramosus. 

 arrnanda — Orthis, Syntrophia. 

 armatus (a, urn) — Arthroclema, Bathyu- 



rus, Bumastus, Helopora, Heterocy- 



stites, Illsenus, Isochilina, Isochilina 



pygmsea, Leperditia, Lumbriconereites, 



Plethopeltis. 

 armosus — Eucalyptocrinus, Glyptaster, 



Glyptocrinus, Siphonocrinus. 

 arnheimensis — Rhynchotreta dentata. 

 arrectus (a) — Aparchitos, Cyrtia expor- 



recta, Cyrtia trapezoidalis. 

 artemesia — Hormotoma, Murchisonia. 

 arthracantkus — Glossograpsus, Glosso- 



graptua. 

 articulatus (um) — Cyathophyllum, Ma- 



dreporites. 

 articulosus — Calceocrinus, Castocrinus, 



ITclorocrinus. 

 arundinaceus — Dicranograptus, Grapto- 



lithus, Mastigograptus. 

 aryballiura — Astylomanon cratera. 

 ascialis — Arabellites. 

 ashmani — Orthodesma. 



asper (a, um) — Acanthoclcma, Batosto- 

 mella, Callopora, Chasmatopora, Cru- 

 ziana, Dekayia, Eucalyptocrinus, Fa- 

 vosites, Fenestella, Gorgonia, Iletero- 

 spongia, Holocystites, Leptiena, Lio- 

 clema, Lophospira, Monticulipora, Mur- 

 chisonia, Paleofavosites, Phylloporina, 

 Plectambonitea sericeus, Rxisophycus, 

 Spatiopora, Subretepora, Terebratu- 

 lites, Trematopora. 



asperatostriata— Chasmato}>ora , Phyllopo- 

 rina, Subretepora. 



asperatus (a) — Archpeocrinus, Conularia, 

 Deocrinus, Spirifer, Spirifer (Eospiri- 

 fer), Rhodocrinus. 



asperostriatus — Straparollina, Straparol- 

 lus. 



asperula — Crania, Monticulipora, Monti- 

 culipora wetherbyi, Petigopora. 



aspinosus — Dalmanites. 



astartseformis — Ctenodonta, Tellinomya. 



astraformis — Plasmopora, Porites. 



astragoletes — Asaphus. 



astrodistans — Clathrodictyon vesiculo- 

 sum. 



atava— Eoorthis, Orthis (Plectorthis), Ra- 

 finesquina, Strophomena. 



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, Clioderma, Ctenodonta, Cymato- 

 nota, Cyrtospira, Lingula, Pterotheca, 

 Rhizophyllum, Rhopalonarla, Tellino- 

 mya. 



atticus — Orthoceras. 



attritus (a)— -Chtetetes, Dekayia, Monti- 

 culipora. 



auburnensis — Platystrophia ponderosa. 



auconini — Tarphyceraa. 



augusta — Metoptoma. 



augustina — Lophospira, Murchisonia, 

 Murchisonia (Hormotoma). 



aulema — Endoceras, Nanno. 



auloporoides— Alecto, Proboscina, Stoma- 

 topora. 



