Plate 52 



Fig. 1. Sclerasterias guernei Perrier, paratype. A single jaw of an abactinal pedicellaria, 300. 

 la. Same. Abactinal pedicellaria, (l. In mm. long, ■ 201). The inferomarginal pi 

 cellaria average 0.2 mm. long. Paratype. 1'/. Same. \ specimen in the British 

 Museum from Bay of Biscay ; pedicellaria from inferomarginal spine, 0.22 nun. long, 

 X200. 



2. Sclerasterias alexandri (Ludwig) paratype, station 3389. Abactinal pedicellariae, 0.25 hum. 



long, X200. 2a. Same, station 3397. Abactinal pedicellaria, 0.19 mm. long, from 

 very young fissiparous specimen i = Hydrasti Has diomedeai Ludwig . 200 



3. Sclerasterias heteropaes, type, station 4551. An al.aelii.al pedicellaria, 0.32 mm. long, - 



3a. Same, station 4431. A single jaw; pedicellariae range from 0.26 to 0.34 mm. i 

 usually 0.31 mm.. X200. 36. Same. Abactinal -pine from young fissiparous, six- 

 rayed specimen, station 3341; R about 10 mm., 200. 3c. Same, station 1431. 

 Pedicellaria from fissiparous, six-rayed young, with 1! 9.5. mm.; length 0.16 mm.; tie 

 pedicellariae vary from 0.12 to 0.16 mm. in length; 200. 3d. Same. \ single jaw 

 of such a pedicellaria, X300. 



1 Sclerasterias hypacantha (Fisher), station 5415. A single jaw, 200. 



5 Sclerasterias euplecta (Fisher), station 4062. Abactinal pedicellaria, 0.2i mm. long, 200. 

 5o. Same, station 3859. Abactinal pedicellaria from a very young fissiparous specimen 

 with R 12 mm.; length 0.1 1 mm., X200. 5b. Same specimen; a single j..v. 



213 



