BIOLOGICAL SURVEY OF WOODS HOLE AND VICINITY. 107 
peruparia clavate 5 cei. 0s 
Cellularia peachtie. «31... 5 1-2... 
Menipeaiternatany.:\.1./.- - ssc « 
Caberiaclliatin co hels2 schists} ah 
Bugula cucullifera ............. 
Bugula murrayana.............. 
Membranipora cymbeformis. .. 
Membranipora craticula......... 
Membranipora unicornis........ 
Membranipora arctica. Eatapeen 
Cribrilina annulata........... 
IRoninastitbulosaicine iis ce seis 
. British Isles, Gulf of St. Lawrence. 
.Northern Atlantic and Arctic seas; Labrador, Gulf of St. Lawrence, St. 
Georges Banks. 
Northern Atlantic and Arctic seas; Labrador, Gulf of St. Lawrence, 
Grand Manan. , 
Northern Atlantic and Arctic seas; Greenland, Labrador, Gulf of St. 
Lawrence, Maine. 
.Maine, off Cape Cod. 
-Northern Atlantic and Arctic seas; Greenland, Labrador, Gulf of St. 
Lawrence, New England. 
.Northern Atlantic and Arctic seas; Gulf of St. Lawrence. 
Northern Atlantic and Arctic seas, Davis Strait, Gulf of St. Lawrence. 
Northern Atlantic and Arctic seas; Greenland, Gulf of St. Lawrence, 
North Pacific. 
“Eminently a northern form;’’ Spitzbergen, Greenland, Labrador, 
Gulf of St. Lawrence, Grand Manan. 
.. Northern Atlantic and Arctic seas; Gulf of St. Lawrence. 
Schizoporella auriculata...... Red and Mediterranean Seas to Arctic Ocean; Gulf of St. Lawrence. 
Schizoporella sinuosa......... Northern Atlantic and Arctic seas; Gulf of St. Lawrence. 
Cellepora canaliculata...........Gulf of St. Lawrence; off Halifax. 
Mucronella pavonella........ 
Satietiaporiieray v.46 66 5.0.60 53 
Porella propingia. «6,003. ; 
Porellaiacttirostris. ..¢.0.....-... 
Porella conctntia..2 6 0/60 ssa 
Rhamphostomella costata..... 
... Northern Atlantic and Arctic seas, Gulf of St Lawrence, North Pacific. 
.North Atlantic and Arctic seas; Gulf of St. Lawrence, Florida, South 
Africa, Australia. 
Northern Atlantic and Arctic seas; Gulf of St. Lawrence, Davis Strait. 
Northern Atlantic and Arctic seas; Gulf of St. Lawrence. 
Arctic seas to Mediterranean; Greenland, Gulf of St. Lawrence. 
.. Northern Atlantic and Arctic seas; Gulf of St. Lawrence. 
Alcyonidium parasiticum ...... British Isles. 
The following notes have been furnished by Dr. Osburn relative to differences of 
habitat displayed by different members of the same genus: 
Crisia. 
C. eburnea: Our most familiar species; abundant in shallow waters, but extending to the deepest 
waters of the region. 
C. cribraria: Found only in the outside, colder waters. 
Bugula. 
B. turrita: Abundant under all conditions in the inner waters; less common in the cold waters off 
_ shore, e. g., at Crab Ledge. 
B. flabellata: On piles and in shallower waters down to a few fathoms; almost wholly confined to 
adlittoral zone. 
B. murrayana: Abundant in outer waters on stones and shells; not found in inner waters. 
Membranipora. 
M. cymbeformis: Common upon hydroid and other stems in outside waters. 
M. pilosa: Common throughout our waters on shells and alge; differing in the form of the zooecia, 
according to substratum occupied. 
M. unicornis: On stones and shells in outer waters. 
M. monostachys: Throughout our waters; common, usually upon very smooth surfaces, such as 
inside of shells, on skate eggs, carapace of Limulus, etc. It presents differences of form, accord- 
ing to whether it grows in inner or outer waters. 
M. tenuis: Common upon stones and shells, but not in shallow waters near shore. 
M. flemingii: (Much as last). 
M. aurita: Common on stones, shells, and alge, at all depths. 
M. tehuelcha: Only found upon drifting gulfweed. 
