the Genera and Species of Staryish. 179 
b. Rays 6 or 8 cylindrical. 
2. Asterias calamaria, Gray. Arms four times as long as the 
diameter of the body, with 7 ridges of spines; the 5 dorsal ridges 
equidistant. 
- Inhab. Isle of France, New Holland. Brit. Mus. 
c. Rays 5—8, elongated, subcylindrical, with 5 or 7 series of 
spines, the 2 lower series close together and near the ambulacra. 
3. Asterias glacialis, Linck, t.38,39. A. spinosa, Pennant. Rays 
4 or 5 times as long as the diameter of the body; spines acute. Var. 1. 
8-rayed ; var. 2. shorter rayed ; Madeira. 
Inhab. English coast, Mediterranean. 
4. Asterias rustica, Gray. Rays 6, flat, broad ; spines short, thick, 
truncated. 
Inhab. Valparaiso, in sandy mud, H. Cuming, Esq. This species 
has a series of small triangular plates, pierced with a central trian- 
gular hole, within the marginal ambulacral spines. 
5. Asterias echinata, Gray. Rays 8, twice as long as the width 
of the body, five-sided; central ridge of spines interrupted. 
Valparaiso, on mud, about 4 to 6 fathoms. H. Cuming, Esq. 
d. Rays 5, tapering ; the ambulacral series of spines crowded, as if 
2 or 3-rowed ; back netted with a ridge of two or three rows of spines 
next the ambulacral series, and then a single series of spines. 
6. Asterias Holsatica, Retz. Ast. 22. & 26. Asterias violacea, 
Miller, Z. D. ii. t. 46. A. glacialis, John. Rays tapering, nearly 
3 times as long as the width of the body. 
Inhab. Northern Europe. Colour very variable. 
7. Asterias rubens, Linn. Rays broad, more than twice as long as 
the width of the body, with scattered blunt spines, spinulose at the 
tip. 
Inhab. European ocean. Is not this only the female with eggs of 
the former ? 
8. Asterias Katherine, Gray. Rays 6 or rarely 5, nearly 3 times 
as long as the width of the body ; back with scattered and crowded 
blunt rough-tipped spines. 
Inhab. North America, mouth of the Columbia river. Lady Ka- 
therine Douglas. 
9 Asterias Wilkinsonii, Gray. Rays 5, nearly three times as long 
as the width of the body; back with about 7 irregular interrupted 
series of rather blunt rough spines, 
Inhab. Northern Africa. Sir J. G. Wilkinson. 
See also Ast. tenuispinosa, Lam.; Ast. hispida, Penn.; Ast. Sa- 
varesi, Chiaje. t. 18. f. 6; and Ast. spongiosa, Fab. 
e. Body discoidal, divided at the edge into numerous short tapering 
rays ; the series of spines near the ambulacral series rather crowded, 
large and elongated. Heliaster, Gray. : 
10. Asterias Helianthus, Lam. 20. E. Meth. t. 108. 109. Arms 
nN 2 
