Notes and Comments. 
141 
■other arms were more or less atrophied, and the right posterior 
Tadial has almost disappeared. 
SYCOCRINUS. 
In volume 13 of the Annals and Magazine of Natural 
History, Dr. Bather figures and describes Sycocrinus anapep- 
iamenns, S. clausus and S. jacksoni. all three from the Visean 
Dibnnophyllum zone, of Settle, Yorkshire. These are illus- 
trated on the accompanying plate (plate XIII.), which has 
Tdndly been lent to us upon which Fig. 1. shows the various 
aspects of S. anapeptamenus, id being an imaginary recon- 
struction of the animal. Fig 2 shows the various aspects of 
the same species as drawn by Austin, 2e being that author’s 
reconstruction. Fig. 3 illustrates various aspects of S. clausus 
and Fig. 4 of S. jacksoni. 
LAN D AND FRESHWATER MOLLUSCA. 
Part 20 of Mr. John W. Taylor’s Monograph has recently 
appeared, and is principally devoted to descriptions of the 
H. arbustorum monstr. acalare Fer. H. arbustorum sub-var. subscalare. 
anatomy, distribution, etc., of Helicogona arbustorum. This 
occupies no fewer than 30 pages, in which many varieties and 
sub-varieties are illustrated and described, and there are also 
some charming coloured plates. We are permitted to repro- 
duce illustrations of H. arbustorum monstr. scalare Fer., and 
H. arbustorum sub-variety subscalare. from Cheshire and Derby- 
shire respectively. With this part Mr. Taylor has issued, as 
an appendix, several pages containing additional information 
in reference to the Zonitidae and Helicidae acquired since the 
publication of the various parts composing the present volume, 
as well as a complete description of Vitrina hibernica — an 
addition to the British fauna and to science — a species only 
detected subsequently to the issue of the part dealing with the 
Yitrinae. Mr. Taylor courteously enables us to reproduce one 
of the plates (plate XIV.). 
YORKSHIRE AMMONITES. 
Part XIII. of Mr. S. S. Buckman’s monograph on “ York- 
shire Type Ammonites ’ has just made its appearance, and 
includes the usual number of excellent illustrations of these 
fossils. The present part contains nine plates upon which 
1914 May 1. 
