INDEX. 



673 



Bhipidocotxjle minima, 472, 492, 498, 

 499 



— viperae, 472, 493, 498 

 Rhizosolenia stylifoi'viis, distribution of, 



518 

 RJiodymenia palmata, 105 

 Rhombus htevis, 358 



— maximu.i, 358 



Rhynchonella cynocephala, 296 



Ritchie, J. E. Note on Two Un- 

 recorded Plumularian Hydroids from 

 the Plymouth Area, 260 



S 



Sabella curta. See Melinna adriatica 

 Sabella pavoniiia, rate of growth in, 



316 ; of Plymouth and S. Devon 



coast, 641 

 Sabellaria alveolata, 108, 645 



— spimchsa, 645 

 Saccocirrus sp., 596 

 Sctccocoelium obesum, 471, 484, 500 

 Saccorliiza (Lamina ria) bulbosa, rate of 



growth, 326 

 Sacculina carcini, 111 

 Sagartia carlgreni, 530, 533 



— milmani, 528, 529, 533 



— miniata, 106, 522, 535 



— nivea, 523, 535 



— ornata, 107, 526, 535 



— sphyrodeta, 530, 533, 535 



— troglodytes, 523, 534 



— xmdata, 106, 524, 534 



— vemista, 523, 535 



— viduata, rate of growth, 314 ; 522, 523, 

 524, 534 



Sagartidae, 521 ; comparative table of 



British species, 534 

 Salmacina Dysteri, 644 

 Salmo trutta, host of Derogenes, 487, 



Bunodera, 487 

 Saxicava rugosa. 111 

 Scalibregma inflatum, 640 

 Scalisetosus assimilis, 612 



— communis, 612 



— pellucidus, 612 

 Sclerocheilus minutus, 640 

 Scolecolepis fuliginosa, 629 



Scolecolepis Girardi, 628 



— {Laonice) cirrata, 629 



— vulgaris, 628 

 Scoloplos armiger, 627 



Scomber scomber, 349, 467 ; host of 

 Pharyngora, 478, Hemiurus, 485, Le- 

 cithocladium, 485, Octocotyle, 496 



Scophthalmus norvegicus, 359 



— unimaculatus, 359 

 Scrobicularia plana, 110 

 Scrnpocellaria re])tans, 108 ; rate of 



growth, 317 

 Serpula vermicularis, rate of growth, 



316 ; at Plymouth, 643 

 Serranus cabrilla, 392 ; host of Helico- 



metra, 477, Lecithaster, 486 

 Sertularia pumila, 106 

 Sexton, E. W. On Anthura gracilis 



(Montagu), 236 

 Sigalion mathildae, 614 

 Siphonostoma typhle, host of Podocotyle, 



473, Acanthochasnuis, 488 

 Sipunculus nudus, 108 

 /SoZea lascaris, 361 



— Ztiie«, 361 



— variegata, 361, 392 ; host of Zoogo- 

 noides, 483 



— vulgaris, 361 ; host of Zoogonoides, 



483, Derogenes, 487 



Solenomya togata, ciliation of the gill 

 of, 40 ; mode of feeding in, 38 



Sparus centrodontus, host of Steringo- 

 trema, 480, Zoogenus, 483, Hemiurus, 



484, Derogenes, 487 



Spatangus purpurexis, development of, 



14 

 Sphacelaria cirrhosa, 105 



— 2)lumigera, 105 

 Sphaerodorum ■minutiim, 626 

 Bphaeroma serratum. 111 

 Sphaerosyllis erinaceus, 597 



— hystrix, 597 



— ovigera, 597 

 Spinther miniaceus, 607 

 (Spio filicornis, 630 

 S'piophanes bombyx, 629 

 Spirorbis borealis, 108, 644 



— spirillum, 645 



Sponge spicules, method of separating, 

 509 



