576 
BULLETIN OF THE UNITED STATES FISH COMMISSION. 
Page. 
roseola (Synapta) Verrill 571 
rubens (Asterias) L nnEEUs 553 
Sand-cakes 5S2 
Sand-dollars 5G2, 561 
Sand-stars 557 
sanguiirolenta (Cribrella) 0. I’. Muller 555 
scabra (Tliyone) Verrill 568 
Schizaster - 517 
Sclerodactyla 567 
scolopendrica (Ophiolepis) Muller & Troschel 559 
scutatum (Euryale) Gould - 501 
Scutella 504,555 
Sea-cucumbers 566 
Sea-urchin, common 563 
green 503 
serpens (Ophioderma) Liitken . 558 
Serpent-stars 557 
Snake-stars 557 
Solaster 548,556 
Spider 561 
spongiosa (Asterias) Fabricius 555 
squamata (Amphipholis) DelleChiaje 560 
squamosa (Ophiura) Liitken 558 
Starfishes 551, 557 
Starfish, common 552 
Page. 
Starfish, northern 553 
Stereoderma 509 
stimpsoni (Asterias) Verrill 553 
Strongylocentrotus 502, 563 
Synapta, common 
rosy 
tenera (Asterias) Stimpson . 
tenera (Ampliiura) Liitken 
tenorii (Ophioglypha) Ljungman 
tenuis (Ophiolepis) Ayres 
tenuis (Synapta) Ayres 
testudinaria (Mellita) Gray 
testudinata (Mellita) A. Agassiz 
thomsonii (Trochostoma) Dan. and K 
Tliyone 548, 549, 5G7, 568, 
Thyone, common 
Toxopneustes 
triforia (Scutella) Say 
Trochostoma 550, 
turgidum (Trochostoma) Verrill 
unisemlta (Thyone) Stimpson 569 
Urchin, keyhole 565 
yiolaceus (Asteracanthion) Stimpson 553 
vulgaris (Asterias) Verrill 553 
s 1 § 1 1 I I § l m l s § 
