134 CALIFORNIA ACADEMY OF SCIENCES. 



Lindakers description can easily be recognized as that of a Trinucleus, 

 approaching T, ornatus Sternb. He indicates the. limb with the genial 

 angles extending into spines, also the three protuberances of the head, 

 and the trilobation of the body, with its divisions into segments, The 

 author also states that the fossil is often found extended or rolled into a 

 ball. 



Lindstrom (G.) Normina fossilium Siluriensiuin Got- 

 landise, Visby, 1867. 



This pamphlet contains a catalogue of the Silurian fossils of Gothland. 



List of fossils of the Upper Silurian formation 



of Gothland. Stockholm, 1885. 



Forteckning pa Gotland Siluriska Crustaceer. 



In Ofversigt. Kongl. Vet. Akad. Forhandlingar, 1885. No. 6, p. 37, pis. 

 12-16. 



Phacops vulgaris Salt., P. imbricatula Ang., P. obtusa n. sp., P. down- 

 Ingice Murch., P. quadrilineata Ang., P. musheni Salt. Cheirurus speciosus 

 His., C. conformis Ang., C. bimucronatus Murch., C '. gotlandicus n. sp. 

 Sphcerexochus scabridus Ang., S. latifrons Ang., S. laciniatus n. sp., S. bey- 

 richi 11. sp. Youngia n. g., Y. trispinosa E. & N., Y. globiceps n. sp., Y. 

 inermis n. sp. Deiphon forbesi Barr. Encrinurus punctatus Briinn, E, 

 Icevis Ang., E. obtusus Ang. Acidaspis crenata Emm., A. barrandei Ang., 

 A. marklini Ang., A. pectinata Ang., A. ( Trapelocera) bicuspis Aug. 

 Lichas concinnus Ang., L. latifrons Ang., L. palifer n. sp., L. araneus 

 n. sp., L. ornatus Ang., L.marginatus n. sp., L. visbyensis n.sp., L. plica- 

 tus n. sp., L. triqnetrus n. sp., L. rotundifrons Ang., L. gotlandicus Ang. 

 Trochurus salteri Fletcher, T. pusillus Ang. Harpes acuminatus n. sp, 

 Calymene tuberculata Briinn, C. tuberculosa Dalm., C. spectabilis Ang., 

 C. Icevis n. sp., C.frontosa n. sp., C. intermedia n. sp., C. excavata n.sp., 

 C. papillata n. sp. Homalonotus knighti Koiiig. Phaetonides stokes f 

 Murch., P. rugolosus n. sp., P. longifrons n. sp. Cyphaspis elegantula 

 Ang., (7. punctillosa n. sp. Proetus concinnus Dalm., P. obconicus n. sp., 

 P. distans n. sp., P. acutus n. sp., P. conspersus Ang., P. signatus n. sp., 

 P. granulatus n. sp., P. verrucosus n. sp. Illcenus barriensis Murch., 

 /. sulcatus n. sp., /. holmi n. sp. Bronteus platyactin Ang., B. marklin! 

 Ang., B. polyactin Ang., B. irradians n. sp., B. umbonatus n. sp., B. creb- 

 rtstratus n. sp. Eurypterus fischeri Eichw. Pterygotus osiliensis Schm. 



Linnarsson (J. G. 0.) Om de Siluriska bildningarne 

 i Mellersta Westergotland, 1. 



In Akad. Af handling som med tillstond af Vidtberomda Filosofiska 

 Fakulteten i Upsala, etc., 1866, 2 pis. 



The Trilobites are grouped as follows: Phacopidee: Phacops. Cheiru- 

 ridse: Pliomera, Cyrtometopm, Sphczrexochus. EncriiiuridaB: Cybele. 



