Page 8 _June-July-Aug. 1 No. 253 N@W YORK SHELL CLUB NOTES 
to boatmen, but, to be better informed, all it takes is a little 
study. 
From: JACKSONVILLE SHELL SHOW BOOKLET for 1978, p.20 

WHAT THE TIDE TABLES DO TELL YOU 
We refer to the tide tables published annually by the Department of 
Commerce. The "local" volume is entitled "Tide Tables 1979, East 
Coast of North and South America Including Greenland and Rigen 
able @ $5.00 postpaid from: Distribution Division, National she ’ 
Survey (C-44), Riverdale, Maryland 20840. Herewith a paragraph fro 
the introduction: 
"This edition of the TIDE TABLES, EAST COAST OF NORTH AND SOUTH AMER- 
ICA contains full daily predictions (Note possible variations as 
pointed out in Bob Wagner's article. --Ed.) for 48 reference ports 
and differences and other constants for about 2,000 stations in North 
America, South America, and Greenland. It also contains a table for 
obtaining the approximate height of the tide at any time, a table of 
local mean time of sunrise and sunset for every 5th day of the year 
for different latitudes, a table for the reduction of local mean 
time to standard time, a table of moonrise and moonset for 8 places, 
a table of the Greenwich mean time of the Moon's phases, apogee, — 
perigee, greatest north and south and zero declination, and the time 
of the solar equinoxes and solstices, and a glossary of terms. 
dr 

CYPRAEA SAKURAII Habe, 1970 
Robert H. Janowsky 
This species is one of the rarest of the cowries and is seldom seen 
in collections. The species was first described in 1970 by Dr. 
Tadashige Habe and to date very few examples have been collected. 
Cypraea sakuraii bears a resemblance to the more familiar (but now 
also difficult to obtain) Cypraea hirasei Roberts, 1913. There is, 
most definitely, a close relationship between these two species, but 
I feel that their separation is entirely justified. In the limited 
number of examples that I have been able to examine there have al- 
ways been distinct and consistent differences. 
The most readily apparent difference is in the patterns: Mature 
specimens of Cypraea hirasei always have a well developed dark 
blotch more or less in the center of the dorsum; this is often (but 
not alway 89 oF an egy a ring of small dark specks above the 
margins. n e case o raea sakuraii there is no dark solid 
Patch in its center -- its pattern consists of numerous short lines 
forming almost a filigree network above the margins (which are high 
and clear) and encroaching onto the top of the dorsum which is also 
largely clear. The BeinLaT of both species when freshly collected 
tends to be the same: cream/flesh overall with brown/red markings 
on the dorsum; base and margins are white and the canals are very 
light orange/pink. 
Both Cypraea hirasei and Cypraea sakuraii tend towards having well 
produced siphonal canals. They differ in overall shape, though -- 
C. sakuraii has a much more roundly inflated appearance than does 
