232 
Polymorphina oblonga, (7) 815; (16) 277. 
rotundata, (15) 167. 
sororia, (16) 277. 
tubulosa, (15) 167. 
Polynoé squamata, (15) 160. 
Polyphemus oculus, (9) 295 ; (11) 234. 
pediculus, (9) 273, 277, 280, 295; 
(11) 234; (12) 286 ; (13) 188, 245, 250 ; 
(14) 168 ; (15) 333 ; (16) 252, 260 ; (17) 
138, 140, 144, 145, 185, &c. 
Polyprion americanus. See Stone basse. 
cernium. See Stone basse. 
Polystoma appendiculatum, (19) 151. 
Polystomella crispa, (7) 315 ; (15) 167. 
striato-punctata, (15) 167. 
umbilicatula, (9) 288. 
Pontella brevicornis, (17) 252. 
wollastoni, (17) 251; (18) 385; (21) 
LS: 
Pontobdella muricata, (19) 141. 
Pontocrates altamarinus, (6) 246; (15) 
139; (20) 491, 492, 510, 529. 
arenarius, (20) 516, 523, 525. 
haplocheles, (10) 263. 
norvegicus, (7) 320. 
Pontocypris acupunctata, (8) 320. 
mytiloides, (7) 816; (15) 142. 
trigonella, (8) 321 ; (15) 142. 
Pontophilus spinosus, (15) 13 
Pontopolites typicus, (12) 251 ; (15) 151. 
Poor-cod (Gadus minutus), ( 
eggs and larve of, (1 
82, 83, 84, 94, 96. 
in Loch Fyne, (4) 282; (15) 111. 
— peculiar example of, (11) 241. 
question of specific distinction from 
bib or whiting-pout, (4) 208. 
spawning period of, (17) 98. 
Porania pulvillus, (15) 161 ; (20) 309, 319, 
324, 
Porbeagle. See Shark, porbeagle. 
Porcellana longicornis, (6) 258 ; (15) 180; 
(16) 198 ; (20) 489. 
platycheles, (6) 257. 
Porcellidium fasciatum, (10) 258. 
Jimbriatum, (4) 158; (6) 242; 
304; (15) 153. 
Porella conupressa, (15) 156. 
Porpoise, food of, (21) 226. 
Porpoises, damage to fisheries by, (7) 394. 
Portugal as a market for Scottish-cured 
herrings, (7) 163. 
Portumnus latipes, (6) 257. 
variegatus, (6) 257. 
Portunus arcuatus, (19) 280. 
depurator, (6) 256 ; (15) 180. 
holsatus, (6) 256 ; (20) 489, 507, 511, 
535, 537. 
marmoreus, (6) 256; (15) 130. 
—— puber, (6) 256 ; (15) 180; (19) 279. 
— pusillus, (6) 256, 265 ; (15) 130; (20) 
507, 526. 
Post-larval fish attacked by Podon, (22) 
279. 
—— fishes, distribution of, in Moray 
Firth, (15) 257. 
forms of food-fishes, (6) 269; (7) 
306 ; (14) 223. 
and young fishes, 
capture of, (20) 328. 
(9) 
nets for the 
Part LI1.—Twenty-third Annual Report 
Post-larval plaice, rearing of, (15) 14. 
Potamocypris fulva, (5) 328; (9) 272, 
276, 282, 284, 286, 288 ; (13) 245; (15) 
321, 330, 333; (16) 252 ; (17) 160; 183; 
194. 
Potter, Mr M. C., (8) 361. 
Pouchet, Professor G., (7) 389; (8) 21, 
373 ; (9) 19, 389; (10) 160, &e. 
Pout, Norway (Gadus esmarkiz), (18) 282. 
abundance of, in northern part of 
North Sea, (19 ) 282. 
— abundance of, on deep-water 
grounds, (19) 64; (21) 20, 25, 30, 35. 
age of, (19) 166. 
as food for other fishes, (19) 
166. 
cysts in eye of Clyde speci- 
mens of, (19) 284. 
distribution of, in North Sea, 
(19) 282, 283. 
food of, (20) 486, 5113; (21) 
22e 
—— —— growth of, (19) 154, 155 ; (22) 
195. 
maximum sizes of, (19) 166. 
occurrence of, on East Coast, 
(20) 539. 
—— —— parasites of, (19) 147. 
relation of length to weight, 
(22) 234. 
reproductive organs of, (22) 
200. 
—— —— size of, at first-maturity, (19) 
164. 
spawning period of, (19) 164. 
silvery (Gadus (Gadiculus) argen- 
tews), (19) 284. 
occurrence of, at Aberdeen, (4) 
210 ; (20) 540. 
Praniza, (16) 242. 
Praunus flexuosus, (16) 158, 162, 209 ; 
(20) 492, 507. 
inermis, (15) 1383; (16) 158, 163, 
209 ; (18) 403 ; (20) 493, 516, 525. 
neglectus, (15) 1338. 
Preservation of fish, (6) 289. 
Priapulus caudatus, (8) 332. 
Prince, Professor E. E., (4) 211; (6) 
280; (8) 8; (9) 15, 318, 343, 349; (10) 
Pay eves) > (113) WEY 
Prince Albert of Monaco. 
Pristiurus melanostomus. 
black-mouthed. 
Productiveness of fishing grounds, 
method of ascertaining, (21) 38. 
Proportion of fish caught in a given area, 
(14) 146. 
Proportional numbers and sizes of the 
sexes among sea-fishes, (8) 348. 
Protective resemblance in young lump- 
suckers, (11) 390. 
Protella phasma, (6) 250; (16) 263 ; (18) 
402 ; (19) 267; (20) 501. 
Proteonina fusiformis, (8) 314. 
pseudo-spiralis, (7) 313. 
Proto goodsiri, (6) 250. 
pedata, (6) 250 ; (20) 492. 
ventricosa, (6) 250. 
Protomedeia fasciata, (6) 248; (20) 479, 
491, 503, 517, 520, 523. 
See Monaco. 
See Dog-fish, 
