106 PEor. p. M. Duncan's eetision of the 



Subfamily Te mnopleuriiKs. (p. 97). 



Genus Temnopleurus. 



Subgenus Pleurechinus. 

 Genus Temnechinus. 



Salmacis. 

 Subgenus Salmacopsis. 

 Genus Mespilia. 



Microcyphus. 



Amblypneustes. 



Goniopneustes. 



Holopneustes. 



Genus incertse sedis : Grammechinus. 



G-enus Temnopi-eueus, Agassiz, 1841, Monogr. Ech. viv. et foss., 

 Preface to Valentin, Anat. Gen. EcMnus, p. 7. Herklots, 

 1854, Foss. de Java (Leide), p. 4, pi. i. Desor, 1858, Synopsis, 

 p. 104. A. Agassiz, 1874, Bevision, p. 460. Martin, 1880, 

 Bev. Foss. FcTi: Java, Notes Leyd. Mus. vol. ii. pp. 73-85. 

 J. Bell, 1880, Proc. Zool. Soc. p. 422. Duncan 6f Sladen, 

 1883, Pal. 2nd. ser. xiv., Fch. Kachli Sf Kat. p. 54. Duncan, 

 1883, Journ. Linn. Soc. voL xvi. p. 350 ; 1888, Ann. Sf Mag. 

 Nat. Hist. ser. 6, vol. i. p. 109. 



Test stout, small and moderate in size, circular or slightly 

 pentagonal at the tumid ambital outline, subcorneal and depressed 

 abactinally, tumid and reentering around the small peristome. 

 Coronal plates moderately numerous, with much epistroma. 



Apical system small, compact, slightly projecting ; basal plates 

 thick, mostly united, the largest the right anterior containing 

 the madreporite, which has circular pores ; all have secondary 

 tubercles for spines and a rather large genital perforation. 

 Eadial plates small, excluded, or one may enter, tumid, broad at 

 their actinal edge and ornamented above with miliaries and 

 small tubercles for pedicellarise and spines. Pore situated 

 adorally and divided externally by a vertical septum ; furrows 

 over the sutures and a deep pit actinally to each radial plate. 

 Periproct variable in size and in the number and size of its plates*. 



Ambulacra straight, narrow ; pairs of pores in slight arcs of 

 threes, the inner pore of a triplet the adoral ; plates rather high, 

 compound, made up of a large adoral primary containing the adoral 



* See the variations shown on pi. viii,, A. Agassiz, Eevision, in T. HardwicMi 

 and T. Eeynaudi and compare with T. toreuinaticus. 



