28 CALIFORNIA ACADEMY OF SCIENCES. 



Om Paradoxides skifrene ved Krekling. 



In Nyt Mag. Naturvid., vol. 24, pt. I, 1878, 6 pis. 



Etage lb: Olenel^is (Paradoxides) kjerul/i Ijinrs. Ariondlus primaevus 

 n. sp. . 



Etage Ic: Paradoxides tessini Broiig., P. rugulosus Cord. Liostracus 

 aculeatus Aug., L. lijuiar ssoni n.Bp., L. microphtalmus A.ng. Conocoryphe 

 sulzeri Schloth. Elyx latilimbalus u. sp. Coiiocephaliies ornatus n. sp. 

 Arionellns diff'ormis var. aculeata. Agnostus gibbtts Linrs. also var. hybrida, 

 A.fallax Linrs. also var. tricuspis, A. punciuosus Ang. also var. affinis and 

 var. bipunciata, A.incertuH n. sp., A.nathorsti n. sp., A. parvifrons Linrs., 

 also var. mammillata and var. nepos, A. iruncalus n.sp., A. nudus Beyr. 

 var. marginata, A. glandiformis Aug. (?) A. A.lavigatus Dalm. 



Etage Id: Paradoxides farchammeri . Doli.chomttopus suecicus. Lios- 

 tracus microphlhalrmis. Solenopleura brachymetopa, S. holo?netopa. Ano- 

 mocare excavaium, A. ? magmum n. sp. Ellipsocephalus circulus n. sp. 

 Arionellus diff'ormis and var. aculeata var. acuminata. Agnostus fallax, 

 A. lijerulfi n. sp., A. nathorsti n. sp., A. aculeatus, A. brevifrons, A. 

 glandiformis, A. Icuvigatus also var. armata, for/ex and similis, A. bituber- 

 cttlatus. 



Die Silurischen Etageii 2 und 3, im Kristian- 



iagebict und auf Eker. Kristiania, 1882, 376 pp., 12 

 plates. 



Ostracoda: Beyrichia nana n. sp. Jsochilina ? socialis n. sp. 



Trilobitfe: Agnostus jnsiformis Linne, also var. socialis Tullb., A. sid- 

 enbladhi Linrs., A. reticulatus Aug. Ampyx domatus Aug., A. nasutus 

 Dalm. Trinucleus. Nihus subgenus Symphysurus incipiens n. sp., S. 

 angusiatus Sars. & Boeck., S. jyalpebrosus Dalm. 



Subgenus Nihus Dalm. (sens, strict), N. limbatus n. sp., N. armadillo 

 Dalm., also var. depressa Sars. & Boeck. var. oblongata Boeck. Niobe 

 obsoletaLiinTS., N. Iceviceps Dalm., N. insignis Jjinrs., JV. emarginula Ang. 

 Piychopyge angustifrons Dalm., P. limbata Ang. Megalaspis p)olyphemus 

 n. sp., M. stenorachis Aug., if. planilimhata A-ug.^. M. expAanatce Aug., 

 M. limbata Boeck var. minor, M. limbata Boeck var. typica, M. extenuata 

 Wahl., M. grandis Sars., M. gigas Aug., M. heroides n. sp., M. acuticauda 

 Aug., M. her OS Dalm. Asaphus exi^ansus Linne var. incerta, A. raniceps 

 Dalm., A. acuminatus Boeck, A. striatus Sars., A. striatus Sars. & Boeck 

 form typica. Illoinus subgenus Dys2^la7ius centrotus Dalm., I.dalmani Vol- 

 borth. Euloma ornatum Ang. Olenus (sens, strict.), 0. attenuatus Boeck, 

 0. aculeatus Ang. Subgenus Parabolina spinulosa Wahl., P. heres n. sp. 

 Siibgenus Parabolinella n. subgenus P. limitis n. sp., P. riigosa n. sp. 

 Peltura subgenus Protopeltura n. subgenus P. acanthura Ang. Peltura 

 (sens, strict.), P. bidentata n. sp., P. planica^ida n. sp., P. scarabaoides 

 Wahl. also var. acuiidens, P. scarabceoides form typica. Subgenus Cyclog- 



