816 MESSRS. W. WEST AND G. S. WEST ON 
(fig. xylogr. 6a) form of this species for comparison with 
S. distentum. 
Hab. Edgemoor, Ind. Bridgeport, Conn. (H. J. nos. 54 & 
193). Ann Arbor, Mich. (H. J. no. 323). 
145. SravRASTRUM DISTENTUM, Wolle, 1882; Desm. U.S. 
p. 149, pl. 41. ff. 15-16. 
Long. 25 p; lat. 38 u; lat. isthm. 8'5 p. (Fig. xylogr. 
6d-f) 
Hab. De Land, Florida. Harvey Lake, Pennsylvania, abun- 
dant. 
This species, which we have seen in abundance, bas a minute 
furcate spine, or rather a small emarginate wart, on each side of 
the incision between the processes; owing to their position these 
warts are best seen when the plant is oblique. This character is 
not mentioned by Wolle, although it is due to the presence of 
these emarginate warts that the apex in front view is “crenu- 
late." In all the specimens we have examined the incision 
between the processes is a mere notch and not “a deep linear 
sinus," and, like the emarginate warts, is best seen when the 
plant is an oblique position. 
In Johnson's specimens from Florida this incision was rather 
wider, otherwise they were identical with the Pennsylvania 
examples. In all cases the processes of one semicell alternate 
with those of the other. 
A figure is given of a vertical view of S. pulchrum, Wolle, for 
comparison with this species (fig. xylogr. 6 c). 
146. S. CORONULATUM, Wolle, Desm. U. S. p. 135, pl. 44. f. 11. 
Lat. 84 y. 
Hab. De Land, Florida, scarce (H, J. no. 591). 
“It seems doubtful whether this is distinct from à six-rayed 
S. Ophiura, Lund.” 
147. S. AnacnuwE, Ralfs, 1845; Brit. Desm. p. 136, t. 28. 
f. 6. 
Long. 25 u; lat. 52 y. 
Hab. De Land, Florida. 
American forms of this species very often have 
cesses (as seen in vertical view) curved in the same 
in S. eyrtocerum). 
all the pro- 
direction (48 
