180 * 
Navicula producta. Rifle Range. 
»,  @stiva. Various localities along the coast. 
humerosa. Various localities along the coast. 
»  granulata. Various localities along the coast. 
s, marina. North Shore, and St. Bees Shore. 
3,  Thombea. In scum from side of Old Quay. 
s,  palpebralis. Drigg. 
», longa. Found in many places mixed with other species 
», oblonga. Found in many places mixed with other species. 
», retusa. Found in many places mixed with other species. 
3,  northumbrica. North Shore, below William Pit. 
rif cocconoides. Rifle Range. 
Stauroneis salina. Whitehaven North Harbour. 
Pleurosigma fasciola. Whitehaven outer Harbour. 
“a arcuatum. Whitehaven outer Harbour. 
“ distortum. Scum from side of Old Quay. 
a5 estuarii. Whitehaven outer Harbour, South Side. 
45 balthicum. Whitehaven inner Harbour, South Side. 
oe wansbeckii. From side of Quay. 
- Jormosum. Whitehaven Harbour. Very Rare. 
aa angulatum. Whitehaven Harbour. Abundaat. 
5a quadratum. Whitehaven Harbour. Very Rare. 
a lanceolatum. North Shore, below William Pit. 
3 transversale. North Shore, belowWilliam Pit. 
i naviculum. North Shore, below William Pit. 
3 elongatum. North Shore, below William Pit. 
re, spenerti. Trough, Barrowmouth Wood. 
3 lacustre. Arrowthwaite. 
oF) acuminatum. In dredgings off the coast. 
Toxonidie gregoriana. North Shore, below William Pit. 
ss insignis. North Shore, below William Pit. 
Donkinia carinata. North Shore, below William Pit. 
»,  minuta. North Shore, below William Pit. 
» cristata. North Shore, below William Pit. 
Amphiprora alata. North Shore. 
59 vitrea. North Shore. 
x, maxima. North Shore. 
Mastagloia grevellii. Sea Brow, above the sewage outlet. 
Calletonema neglectum. In almost all small running streams. 
% vulgare. In almost all small running streams. 
Schizonema. Several species ; not determined. 
Ae grevellit. 
» dansii. obtained in great abundance. 
In the rock pools behind the West Pier ; where 
these and other members of this genus may be 
