KONGL. SV. VET. AKADEMIENS HANDLINGAR. BAND. 25. N:0 2. 13 



Poteriocrinites ? Ant. V, 123. 



Pycnosaccus scrabiculatus, His. sp. vide Cyathocrinites scrobiculatus. 



Sphaeronites aurantium Ant. IV, 46, 48, 198. 



Sphaeronites citrus Ant. VII, 72, 74; L. 91, 92, t. XXV, f. 8 a, 6, c, tf; S. S. 10. 



Sphaeronites granatum Ant. V, 11; Ant. VI, 115, t. VII, f. 1. 



Sphaeronites pomuni, Gvll. sp. Ant. IV, 197, t. V, f. 2, 3, 4; Ant. V, 11, 13; 



Ant. VII, 72, 74; L. 91, t. XXV, f. 7. 

 Sphaeronites testudinarius Ant. VI, 115; Ant. VII, 74; L. 92, t. XXV, f. 9 a, l>, c, d. 

 $phwronis pomum, Gyll, sp, vide Echinosphaerites and Sphaeronites pomum. 

 Trochites, vide Crinoidis articuli columnae and Crinoid stem-fragments. 



1854. Muller, Joh. »Ueber den Bau der Echinodernien.» Phys. Abh. d. k. Akad. Wiss. 



Berlin, for year 1853, pp. 123—219; Plates I— IX. Berlin. 

 Anthocrinus Loveni on pp. 187—192 and Pl. VIII. 

 This paper was translated by T. II. Huxley, with added note, in Ann. Mag. Nat. 



Hist., 2nd ser., vol. XII, p. 1, p. 112 and p. 241. Jan., Feb. and April, 1854. 



1858. Roemer, C. Ferd. »Die Versteinerungen der silurischen Qiluvial-Geschiebe von 



Gröningen in Holland.» Neues Jahrb. f. Min. Jahrg. 1858, pp. 257 — 272. 

 Stuttgart. 

 On p. 268 Cyathocrinus pentagonus, Goldf., Cyathocrinus ru<i<>siis, Goldf. pars, 

 and Rhodocrinus (Actinocr.) tesseracontadactylus, Goldf., are said to occur 

 in Gotland. 



1859. Helmersen, G. von. »Geognostische Bemerkungen auf einer Reise in Schweden nnd 



Nonvegen.» Mem. Acad. Inip. Sci. (Math. Phys.) St.-Petersbourg, ser. 6, 



vol. VII, pp. 293 — 335 and 3 plates. 

 Actinocrinus simplex (== Encr. tesseracontadactylus, His.), p. 299, 300, 309. 

 Cyathocrinus rugosus, Murchison, p. 300, 304, 305, .'K»'.». 

 Ajuocriniis scriptus, p. 300, 309. 

 Troehocrinites gottlandicus, p. 303 (l>v correction for Actinocrinites moniliformis), 



309, 312, 313. Pl. III, f. 11 a—e. Description by Paxder. 

 1859. Schmidt, Friedrich. Beitrag zur Geologie der Insel Gotland, nebst einige Be- 



merkungeD ueber die untersilurische Formation des Festlandes von Schweden 



nnd die Heimath der norddéatschen silurischen Gesebiebe.» Archiv f. d. 



N.itnrknnde Liv-, Ehst- und Kurlands, ser. 1 , vol. II, pp. 403 — 464. Dorpat. 

 Crotalocrinus rugosus mentioned on pp. 435, 440. Ein kleiner Encriniten- 



Kopf p. 43S. 

 1859. Lindström, G. Geologiens Grunder. 2nd edition. 8vo. »Stockholm. 



On pp. 153 — 155 is a description of the geolog}- of Gotland, and on p. 166 there 



are said to be about 200 species of Crinoidea in Gotland. 

 1867. — — Nomina Fossilimn siluriensium Gotlandia'. 8vo. Stockholm. 



The following list of Crinoidea is given on p. 6. Anthocrinus Loveni, Mux., 



Crotalocrinus rugosus, Mill., Enallocrinus scriptus, His., A', punctatus, His., 



