gS SMITHSONIAN INSTITUTION 



PLATE XLVI 



PAGE 



Figs. 1-7. Protaxocrinus salteri (Angelin) 352 



Fig. 10. The type specimen, original of Angelin, pi. 23, figs. I, 10; from r. ant. interradius ; showing 

 less angularity than in the preceding species of lateral faces of brachials; 3 IIBr. 



lb. Posterior view of lower portion, showing post. B, and beginning of anal series. Xi- 



2a. Another specimen from Faro (rf), from r. post, radius ; has 4 IIBr in half of one ray. XI- 



26. Opposite view of same. 



2C. First interbrachial area, showing plates and perisome. X 3- 



2d. Intersecundibrach area. X 3- 



2e. IVBr, ornamented with small nodes. X 3- 



3a. Abnormal specimen from Djeywick (c), posterior view. One IBr lacking in r. post, ray; 

 but there are 4 IIBr in the ray, and the small plate next to BB represents the RA. 

 T}rpe of Ta.romnus distensus Angelin, pi. 26, figs. 7, 70. Xf. 



3b. Basal view of same. X j. 



4. Abnormal specimen from FolHngbo (/), from 1. post, radius, in which it has but one IBr, 

 compensated by an additional IIBr in each ramus of that ray. X 2. 



5a, b. Type of Taxocrinus tiibuliferus Angelin, pi. 20, figs. II, 12; posterior and basal views; 

 a very young specimen probably of this species. X 3- Endre (d). 



6a, b. Type of Taxocrinus austini Angelin, pi. ig, figs. 11, iia, from Wisby (d). A very 

 immature, much distorted specimen, wholly without diagnostic characters for specific 

 description ; perhaps of this species ; anterior and posterior views. X 3- 



6c, d. The same views of this specimen as restored by Mr. Liljevall. X 3 (enlargement frac- 

 tion omitted on plate). 



7. Specimen from Follingbo (/), perhaps a variant of this species, with 4 IIBr in the two ray 

 divisions visible ; r. post. view. X 2. 

 Wenlock Gr. ; Silurian. Gotland, Sweden. 



All specimens in the Riks Museum, Stockholm. 



Figs. 8-11. Protaxocrinus ovalis (Angelin) 351 



Fig. 80. The type, original of Angelin, pi. 20, fig. 13, anterior view. Has 3-5 IIBr, but rather 

 broad brachials without ornamentation, and lateral faces without prominent but- 

 tresses. X 2. Follingbo (/) . 



8b. Posterior view of same, showing anal series but little attached at right side. X 3- 



90. Broken specimen from FolUngbo (/), from r. ant. radius; 4 and 5 IIBr, and iBr with 

 perisome following. X 2. 



gb. Lower part of same. X 4- 



loa, 6. R. ant. and posterior views of very young specimen from Sigdes (d), perhaps of this 

 species. X 3- 



II. Abnormal specimen from Follingbo (/) lacking one IBr in r. post. ray. RA distinguish- 

 able by its small size. X 2. 



Wenlock Gr. ; Silurian. Gotland, Sweden. 

 All specimens in the Riks Museum, Stockholm. 



