380 GLOSSARY. 



Amphilestes (Gr. amjyhi, both; lestes, a thief). A genus of Jurassic Mam- 



mals. 

 Amphispoxgia (Gr. amphi, both; sjjoggos, sponge). A genus of Silurian 



sponges. 

 Amphistegi>'a (Gr, amphi, both ; sUge, roof). A genus of Foraminifera. 

 AiiPHiTHERiUir (Gr. am;phi, both ; therion, laeast). A genus of Jurassic Mam- 

 mals. 

 Amphitragulus (Gr. ampin, both ; dim. of tragos^ goat). An extinct genus 



related to the living Musk-deer. 

 Amplexus (Lat. an embrace). A genus of Rugose Corals. 

 Amptx (Gr. ampux, a A^Teath or wheel). A genus of Trilobites. 

 Anarthropoda (Gr. a, without ; arthros. a joint; jpons, foot). That division 



of Annulose animals in which there are no articulated appendages. 

 AxcHiTHERiDM ( Gr. agcM, near ; therion, beast). An extinct genus of Mammals. 

 Anctloceras (Gr. agkulos, crooked; ceras, horn). A genus of Amnionitidce. 

 AxcTLOTHERir.Ai (Gr. agkulos, crooked; therion, beast). An extinct genus of 



Edentate Mammals. 

 AxDRLis (Gr. andrias, image of man). An extinct genus of tailed Amphi- 

 bians. 

 AifGiosPERMS (Gr. angeio'n, a vessel ; sperma, seed). Plants which have their 



seeds enclosed in a seed-vessel. 

 Anxelida (a GaUicised form of Annulata). The Ringed Worms, which form 



one of the divisions of the Anarthropoda. 

 AsxcLARiA (Lat. annulus, a ring). A genus of Paleozoic plants, T\dth leaves 



in whorls. 

 A^'^'^ULOSA (Lat. annulus). The sub-kingdom comprising the Anarthropoda 



and the Arthropoda or Arti-culuta, in all of which the body is more or less 



eA'idently composed of a succession of rings. 

 Anomodoxtia (Gr. cnomos, iiTCgular; odous, tooth). An extinct order of 



Reptiles, often called Dicynodontia. 

 AxoMURA (Gr. anomos, irregular ; oura, tail). A tribe of Decapod Crustacea., 



of which the Hennit-crab is the type. 

 AxoPLOTHERED^ (Gr. ano-plos, unarmed ; thtr, beast). A family of Tertiary- 

 Ungulates. 

 Anoura (Gr. a, without ; oura, tail). The order oi Amphibia comprising the 



Frogs and Toads, in which the adult is destitute of a tail. Often called 



Batracliia. 

 ANTE>rN'^ (Lat. antenna, a yard-arm). The jointed horns or feelers possessed 



by the majority of the Articulata. 

 A>'TEX>'ULES (dim. of Ayiten-nce). Applied to the smaller pair of antennaB in 



the Crustacea. 

 AxTHRACOSAURUS (Gr. anthrax, coal; saura, lizard). A genus of Labj-rintho- 



dont Amphibians. 

 AxTHEAPALEMOX (Gr. antkrax, coal; paloemon, a pra-Rm — originally a proper 



name). A genus of long-tailed Crustaceans from the Coal-measures. 

 An'TLERS. Pr'operly the branches of the horns of the Deer tribe {Cervidoe), but 



generally applied to the entire horns. 

 ApiocRrs'iD^ (Gr. apion, a pear; krinon, lily). A family of Crinoids — the 



"Pear-encrinites." 

 Aptertx (Gr. a, without ; pterux, a wing). A -ndngless bird of New Zealand, 



belonging to the order Cursoi'es. 

 Aqueous (Lat. aqua, water). Formed in or by water. 

 Arackn'IDa (Gr. arachne, a spider). A class of the Articulata, comprising 



Spiders, Scorpions, and allied animals. 

 Abborescen'T. Branched like a tree. 



Arch^ocidaris (Gr. archaios, ancient; Lat. cidaris, a diadem). A Palaeo- 

 zoic genus of Sea-urchins, related to the existing Cidaris. 

 Aech^octathus (Gr. archaios, ancient ; kuathos, cup). A genus of Palaeozoic 



fossils allied to the Sponges. 

 Abch^optertx (Gr. archaios, ancient ; pterux, a wing). The singular fossil 



bird which alone constitutes the order of the iSaururoe. 



