KONGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 25. N'.0 2. 187 



Plate IV. 



Calceocrinus (continued). 



C. interpres (p. 94). 



Fig. 123. The complete specimen seen from 1. post. radius, as it lies on the matrix. Natural position; 



compare with Figs. 02, 103, 105, 109, 129. 

 Fig. 124. Same specimen; lower part of crown, from 1. ant. radius. 

 Fig. 125. Same specimen; lower part of crown, from anal side, with stem attached. 

 Fig. 126. Same specimen; the hinge, showing supplementär}' plates. (p. G9 and compare Fig. 142.) 

 Fig. 127. Same specimen; sutures between II, III and IV axils showing supplementary plates for com- 



parison with those of the hinge, Fig. 126. (p. 70.) 

 Fig. 12*. Same specimen; distal end of stem, as preserved. The axial canal is seen at the point de- 



noted by *. (pp. 75 and 95; and add reference to Rep. Geol. Sun. Illinois, VIII, p. 161, 



published 1890 but received in England after the sheet containing those pages had gone to 



press.) 



C. pinnulatus (p. 96). 



Fig. 129. Type-specimen; view of entire specimen from ant. radius. (p. 98.) 



Fig. 130. Same specimen: from hehind, showing hinge and stem. (p. 99.) 



Fig. 131. Same specimen; anal plates, drawn as though stem and small axil-arm were absent, but 



nothing inserted that cannot be clearly seen. (p. 97.) 

 Fig. 132. Same. specimen; distal end of anal tube in section. (p. 97.) 

 Fig. 133. Same specimen; the cup and proximal ends of 1. ant. and 1 ax arms; chiefly to show the 



alternation of the brachial sutures, indicative of the presence of pinnules. (p. 98.) 

 Fig. 134. Same specimen; quintaxil-arm of ant. radius from side, showing pinnules. (p. 98.) 

 Fig. 135. Same specimen; eight brachials of the same arm, with four pinnules. (p. 98.) 

 Fig. 13G. Same specimen; pinnules from the same arm seen in section. (p. 99.) 

 Fig. 137. Same specimen; articular face of a columnal, showing pentagonal axial canal, traces of sutures, 



and striated surface. (p. 99.) 

 Fig. 138. Fårö-specimen a; brachials from side, showing the swelling of the pinnule-articulation. (p. 98.) 

 Fig. 139. Fårö-specimen L; section of tbree arms. showing axial canal, groove and kinnules. (p. 98.) 

 Fig. 140. Semi-diagrammatie sections of brachials, showing relations of ventral groove and pinnules. (p. 98.) 



Halysiocrinus (p. 65). 



H. ventricosus (pp- 65, 66). 



Fig. 141. A specimen from Burlington, Iowa, in the Riks-Museum. From anal side, showing radianal, 



x &e. (p. 62.) 

 Fig. 142. Same specimen; hinge with supplementary plates. (p. 70, and compare Fig. 126.) 



Homocrinus (p. ioi). 



H. tenuis (p. 105). 



Fig. 143. Photograph of the larger portion of a sandstone slab covered with specimens of this species 

 and of a few other genera. The letters a, b, c, d, refer to the particular specimens described 

 and figured. (p. 105.) 



Fig. 144. Specimen a, with its stem; posterior view. Part of another specimen of this species lies 

 across the stem. (p. 106.) 



Fig. 145. Specimen b; anterior view of dorsal cup and proximal part of arms. (p. 106.) 



Fig. 146. Specimen c; showing ventral tube. 



Fig. 147. Portion of stem, with articular surface of a columnal. 



