40 Echinodermata (mit Einschluß der fossilen) für 1912. 



■fMacropygus als Subg. von Pygaster Hawkins, Geol. Mag. 9, p. 11 und Proc. 

 zool. Soc. London 1912, p. 449 — truncatus Hawkins II. CC. 



"fMagnosia punctata Jackson. 



■fMeekechinus n. g. Lepidesthidarum mit Type M. elegans n. sp. Perm, Kansas. 

 Jackson. 



■\Megapygus subgen. nov. von Pygaster mit P. umhrella als Type Hawkins, 

 Proc. Zool. Soc. London 1912, p. 449. 



Meilita sexiesperforatus Jackson. 



■\Melonechinus Jackson — dispar, etheridgii, giganteita, indianenais, mul- 

 tiporus, parvus, septenariics, stewartii Jackson — keepingi n. sp. Car- 

 boniferous Limestone, Yorkshire 1. c. — liratus n. sp. Unter-Carbon ?, 

 Kentucky 1. c. — ohovatus n. sp. Unter- Carbon, Tennessee 1. c. — 

 springeri n. sp. Unter-Carbon, Kentucky I.e.— Vandeihilti n.sp. Unter- 

 Carbon ?, Kentucky I. c. 



'\Melonites Youngi [nom. nud.] Jackson. 



Mespilia H. L. Clark (4) — -fglobula Jackson. 



Metalia pectoralis Jackson. 



^[Metaporhinus convexus De Stefani. 



^Micraster — coranguinum Jimenez de Cisneros, Hawkins Proc. Geol. 

 Assoc. 23, p. 253. — coranguineum [!] Jackson — corbaricus, mathe- 

 roni Lambert, Bull. Soc. geol. Paris (4) 10, p. 814 — cfr. Chatwin (2>, 

 Dibley, Filliozat — hreviporus Ag. ?, turonensis Bayle Jimenez de Cis- 

 neros (2) — de Lorioli Nov. Tuppy. 



Microcyphus Jackson — annulatus, compsus, cricacanthvs, maculatus, 

 zigzag H. L. Clark (4) — annulatus, tnacidatus Jackson. 



^Micropedina Fourtau, Bull. Inst, ßgypt. 5, p. 156 — olisiponensis 1. C. — 

 conica n. sp. Cenoman, Aegjrpten 1. c. 



^Miocidaris Jackson — cassiana, keyserlingi 1. c. — cannoni n. sp. Unter- 

 Carbon, Colorado 1. c. 



^Miotoxaster lamberti n. sp. Albien, Syrien Fourtau, Mem. Inst, figypt. 7, 

 p. 54, t. 13, f. 5. 



■\Nucleolitidae Hawkins, Proc. Zool. Soc. London 1912, p. 489. 



"fNucleolus daleaui Lambert, Actes soc. linn. Bordeaux 66, p. 76. 



Nudechinus n. g. Echinidarum H. L. Clark (4) — scotiopremnus n. sp., stictus 

 n. Sp. Sulu Archipel 1. C. — daruleyensis, graviert, inconspicuua, mul- 

 ticolor \. c. 



^Of faster pilula Brydone, Stratigraphy of Chalk of Hants, p. 109, t. 2, 

 figg. 5-18. 



^Oligoporus Jackson — blairi, coreyi, danae, minutus, suLcatus \, C. — halli 

 n. sp. Keokuk- Gruppe, Missouri 1. c. 



Opechinus H. L. Clark (4) — spectabilis, variabilis l. C. 



■\Opisaster [l] lamberti n. sp. Eocän, Aegypten Fourtau, Bull. Inst. Tiigjrpt. 

 5, p. 173, t. 4, f. 4. 



■\Opissaster nux Lambert, Ann. Univ. Lyon 1, p. 186 — minor n. sp. Lutetien, 

 Fabrezan 1. c. 



Orechinus H. L. Clark (4) — monolini 1. e. 



^Orthechinus arabicus n. sp. Santon, Aegypten Fourtau, Bull. Inst. ':^gypt. 5, 

 p. 146, t. 1, f. 4. 



