Pores ill Fistulatc Cri/ioids. — Springer. 135 
semblance to the alleged structure of Aiilocrimis is presented 
b}' Gissocriinis verrucosus, '^'^ but this is only partial and super- 
ficial. I do not accuse the authors of any intention to mis- 
lead, but this I do suggest; that their artist would not have 
drawn figures 5 and 9 in this way had he not been told to 
put in structures which he really had a difificulty in seeing. 
Few scientific writers have not had a like unfortunate ex- 
perience. If Aulocrntns truly has a ventral sac of this nature, 
it differs far more from other Fistulata than Messrs. Wach- 
smuth and Springer have stated. If the structure is correctiy 
drawn it is most extraordinary that it should not be specially 
mentioned in the text. But it is so opposed to all facts hith- 
erto observed or published that, until ]Mr. Springer himself 
compares fig. 9 of pi. vii with the original specimen, and 
assures us publicly that the pores have the position there 
assigned to them, and gives a properly enlarged drawing or 
photograph in support of his statement, scepticism will be 
more than justified." 
Later on, in tl:: chapter on Crinoidea written by Mr. 
Bather for Ray-Larl ester's Treatise on Zoology — of which he 
was kind enough to send me advance sheets — chap. XI, p. 
130, ?\Ir. Bather makes a rather sarcastic allusion to these 
same figures, as follows: — 
"The statement has repeatedly been made (by Traut- 
schold, Loven, Wachsmuth and Springer) that pores occur on 
the suture lines between the plates composing the anal tube 
of many Inadunata. . . The statement has been definitely 
disproved for m.any forms hitherto said to have such pores. But 
Wachsmuth and Springer (1897, pi. vii, figs. 2b, 5, 6, 9) sup- 
port it by figures which, if correct and correctly interpreted, 
prove it for some species up to the hilt — and much farther. 
For they show pores not only on the sutures, but penetrating 
the plates; not only in the interaxial depressions, but on the 
axial folds; not only in the tube, but in the dorsal cup." 
Now, criticism is one thing — and so long as it keeps 
*Crinoidea of Gotland, I, pi. x, tig. 378; Svensk. V'etensk, Akad. 
Handl., xxv, 2, (1893). 
