192 F. A. BATHEK, CRIN01DEA OF GOTLAND. 



Botryocrinus cucurbitaceus (continued). 



Fig. 190. Same specimeu; lower lett-band portion of Fig. 189, further enlarged to show the bottom of 

 t lic folds, thus demonstrating the entire absence of both pores and slits. (pp. 121, 122.) 



¥\g. 191. Specimen e; part of an arm, showing the true nature of the branching. (p. 121.) 



Fig. 192. Specimen /'; brachials and covering-plates ; (a) from ventral surface, (b) ventral surface, en- 

 larged and slightly restored, to show spinous processes attached by suture to the covering- 

 plates proper, (c) as in (5), but seen from the sidc. (p. 121.) 



Fig. 193. Same specimen; sutural surface of a columnal, showing pentagonal axial canal and Btrise. 

 Compare Fig. 181. (p. 122.) 



Streptocrinus (pp. 122, 53 and 175). 

 S. crotalurus (p. 123). 



Fig. 194. Right post. arm, seen from ventral surface, showing covering-plates, impressions of perisomic 



plates along suture-lines, and false pinnules. For full description see p. 124. 

 Fig. 195. Same specimen; facet of II Brj, showing shallow ventral groove, and deep notch for axial 



cord. (p. 124.) 

 Fig. 196. Same specimen; origin of ventral sac from dorsal cup. Compare Figs. 164 and 188. (p. 125.) 

 Fig. 197. Portion of the ventral sac of another specimen, enlarged to show the folds of the plates. (p. 125.) 

 Fig. 198. Stem of original specimen, (a) from side, showing columnals of irregular thickness, with longi- 

 tudinal sutures, (b) facet of a columnal, showing sutures. (p. 125.) 



