BIBLIOGRAPHY OF PAL.EOZOIC CRUSTACEA. 163 



Asaphus expansus Tiiune Philipsia e.lchivaldi Fisch., P . ouraUca i\. sp. 

 Calymene odeni Eichw., 6'. fischeri Eicliw. 



M'Murtrie (H.) Sketches of Louisville and the Fall 

 of the Ohio. Louisville, 1819. 



Somatrikelon megalomaion, p. 74, ii. g. and u. sp. 



This new genus under the law of priority should replace the geuus 

 Phacops if it were not for the objection to Somatrikelon, which means 

 the same as the word Trilobite used for the class. The name given to 

 the species " having very large eyes " corresponds to that given by Dr. 

 Emmrich to the geuus Phacops. 



The author refers "this verj- curious animal to the vermes class," and 

 remarks: "At first view it appears to have three distinct bodies and one 

 head, which is owing to the former being verj' broad (nearly one-half an 

 inch) and divided throughout its length by two deep clefts, one on each 

 side of the central j^art or back, which is elevated a fourth of an inch above 

 the sides, is convex, and terminated at one end by a large head, furnished 

 with unusually prominent eyes and a mouth formed like that of a snapping 

 turtle. From the Falls of the Ohio." The following diagnosis is given: 

 "Corpus tripartitum, rugosum, sinuatum; extremitate altera acuminata 

 curvataque dorso, arcuato, serie tuberculorum utro, bique, capite subro- 

 tundo, oculis peramplis." 



(Phacops 7-ana Green.) 



Nathorst (A. G.) Om lager-foljdem inom Cambriska 

 formatioiieu vid Andrarum i Skoiie. 



In Ofversigt kongl. Svenska Vet.-Akad. Fia-handl., ISG9, No. 1, p. 61. 

 Contains list of fossils and observations. 



Om de Kambriska och Siluriska lagren vid 



Kiviksesperid i Skone jerate anmarkiiingar om primor- 

 dial faunans lager vid Andrarum. 



In Geol. Fiireningens Stockholm Ftirhandl., No. ,37, vol. o, 1876. 



Om det inbordes forhollandet af lagren mit 



Paradoxides olandiciis och P. tessini po Oland. 



In Geol. Fiireningens Stockholm Fiirhandl., No. 69, vol. 5, 1881. 



Om det inbordes aldersforhollandet niellan 



zonerna med Olenellus kjeridp, och Panuloxides old.ndicus . 



In Geol. Foreuingens Stockholm Fiirhandl., No. 71, vol. 6, 1882. 



The position of the Olenellus beds. 



In Am. Geol., vol. 2, 1888, p. 356. 



