BIBLIOGRAPHY OP PALAEOZOIC CRUSTACEA 127 



WALC O TT ( Charles D.)— Continued 



Walcott refers Dikelocephaltis misa ilall to lliis^ genus. The other species referred by 

 Brogger to th.e genus, such as Dikeloceplialus oscrola Hall, are referred by Walcott to 

 a new genus Osceolia, and Dikeloceplialus spiiiixer to the new genus Calvineila. 



3. Saukia, new genus. The genus has a narrow frontal border about the cephalon, 

 and a glabella proportionately more elongated than in nikei(x:ephaliis. The pygidium 

 is less expanded and more elongate than that of nikelocephalus. Genotype Dikelo- 

 ceplialus lodensis Whitf. 



The author describes Saukia coloraJoeiisis n. sp., S. crnssiiiuiriiinala W'liitfieid, 1882, 

 S. fallax n. sp., junia n. sp., S. leptaeriaruin Wiman, 1907; S. leucosia n. sp., S. lodensis 

 Whitf. the type >.V. marica Wale, 1886; S. pepinrnsis Owen, 1852; S. pyretic n. sp., S. 

 rustica n. sp., -S'. stosei n. sp., S. ivardi n. sp. 



4. Osceolia, new genus. This genus is ciiaracterized by its concave frontal limb, 

 palpebral lobes, narrow fixed cheeks and transverse pygidium with its anterior segment 

 extended beyond the margin as a long spine. Cienotype Dikeloceplialus oseola Hail, 

 1863. 



5. Calvineila, new genus. CJenotype Dikeloceplialus spitii^er Hall, 1863. This genus 

 is like Saukia, but differs in form of the glabella, presence of strong occipital spine, and 

 proportionally more elongated pygidium. It differs from Osceola in frontal limb of 

 cephalon, presence of occipital spine and character of pygidium. 



The author refers to the genus Dikeloceplialus neivforierisis Weller, 1903; (uilvinella 

 ozarkeiisis n. sp. Dikeloceplialus spinii^er Hall, 1S63, and Calvineila tenuisculpla n. sp. 



Cambrian Geology and l^ala-ontology, Part ^5, No. 1. The Cain- 



brian faunas of Eastern Asia. 



Smithsonian Misc. Coll., vol. 64, No. 1, 1914. 



The author gives a historical review with a summar} of the genera and species. 



A new genus, Tsinania, with lllaeniirus canen for the genot\pe, is given on page 43. 

 The genus differs from Illaenurus Hall, in having the cranidium rounded in front, by 

 the incurving of the facial sutures, and short postero-lateral limbs. He refers several 

 species to the new genus previously included under Hall's genus, viz: Tsinania canens, 

 T. ceras, T. cleora and T. dictys. 



Cambrian ({('ology and PalaMmtolngy, No. •']. Cambrian Tri- 



lobites. 



Smithsonian Misc. Coll., vol. 64, No. 3, 1916. 



The author, under the Order Proparia, describes several new genera. 



Family Menomonidae — Menomonia a new genus with Conoceplialites, calymenoides 

 Whitfield as the genotype. 



Millardia, a new genus with M. seinele as genotype. Refers one new species M. 

 avilas and Conoceplialites optata Hall, also, to the genus. 



Dresbachia, a new genus with D. anata as the genotype. 



Norwoodid.-e, a new familv with a new genus, Norwoodia, with five new species: 

 Genotype A^ i^racilis, also N. ponderosa, S. Saffordi. /V. simplex and .V. tenera. 



The cranidium, with its Ptychoparia-like glabella and small eyes and broad pleural 

 furrows, are primitive, while the few thoracic segments (8 or 9) and relatively large 

 tail, suggests the sub-family Phacopinae. lender the order Opisthoparia, he describes 

 A^^raulos s/afor n. sp. ; also Acrocephalites Wallerus, with a translation of that au- 

 thor's description of the genus, with nine new species. Refers Solcnopleiira ? stennme- 

 iopa Aug. and Conoceplialites vulcanus Bill, to the genus. 



Compares the new species A. llaynesi and tulus with the genotype, .1 crnceplialites 

 insii^nis has narrower fixed cheek and frontal limb of ./. stcnometopus, .1. Americanus 



