APPENDIX. 
501 
call Romero de la Mar. It puts forth its leaves in tasseled 
tufts, and produces small yellow flowers. I sent and pro- 
cured the plant. R. H.” This plant, which is common to 
the sea-coast throughout the tropics, presents some ano- 
malies in its structure, which render it very difficult to 
classify. 
IV. 
Viviparous generation of the Yellow Boa {Chilabothrus 
inornatus), p. 323. — The case of the Boa which produced 
in captivity twenty-three living young ones (not eleven, as 
stated by mistake in the text) appeared to me so anoma- 
lous, that I sought a further verification of the circum- 
stance. Mr. Hill accordingly obtained from his informant 
the following clear and interesting details of the matter, 
which render the fact indubitable, however strange. 
“ Cumberland Pen, [Jamaica,] 
8th May, 1851. 
“ My dear Mr. Hill, 
“ According to your desire I sit down to give you 
the particulars of the Yellow Snake, that I told you had 
produced young in my possession. 
‘‘ It was on the 3rd of July, 1849, that I caught the 
Snake, on a sunny bank at Halfway-tree Pen (its compa- 
nion, the larger of the two, escaped, and I lost it in the 
grass). I put it into a box with a wire front, and with it 
imprisoned a mouse and two ground-lizards : the Snake 
made no attempt upon the lives of its fellow prisoners, 
who were fortunate enough to regain their liberty in a 
week or two. 
“ I could never induce the Snake to eat, though I offered 
it everything I could think of ; and it was more savage 
than most others, and bit me several times, each bite 
drawing blood like a severe scratch from a cat. 
