ILLUSTRATIONS 
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Rotatoria op the United States — C ontinued. Facing page 
Plate VIII. (67-72) Rattulus longiseta Schrank. (73-76) Rattulus bicuspes Pell 352 
IX. (77-80) Rattulus bicristatus Gosse. (81-85) Rattulus pusillus Lauterborn 352 
X. (86-91) Rattulus mucosus Stokes. (92-94) Rattulus stylatus Gosse 352 
XI. (95-97) Rattulus carinatus Lamarck. (98, 99) Rattulus lophoessus Gosse. (100,101) Rattulus rattus 
Muller 352 
XII. (102-107) Rattulus elongatus Gosse 352 
XIII. (108-110) Diurella intermedia Stenroos. (Ill, 112) Rattulus scipio Gosse. (113) Diurella sulcata 
Jennings. (114, 115) Diurella brachyura Gosse. (116, 117) Diurella weberi, new species. (118, 
119) Diurella sulcata Jennings : 352 
XIV. (120,121) Diurella sejunctipes Gosse. (122) Diurella helminthodes Gosse. (123-126) Diurella marina 
Daday. (127) Diurella collaris Rousselet. (128) Diurella brevidactyla Daday. (129) Rattulus 
curvatus Levander. (130) Rattulus braehydactylus Glasscott. (131, 132) “Rattulus lunaris" 
Ehrenberg. (133) Rattulus dubius Lauterborn. (134) Distemma setigerum Ehrenberg 352 
XV. (135) Rattulus unidens Stenroos. (136) Rattulus cuspidatus Stenroos. (137) Rattulus roseus Sten- 
roos. (138) “ Rattulus cimolius” Gosse. (139) “ Rattulus calyptus ” Gosse. (140-143) Elosa wor- 
rallii Lord. (144) “Ccelopus (?) minutus” Gosse. (145) Bothriocerca affinis Eichwald. (146) 
Bothriocerca longicauda Daday 352 
Plankton Algie of Lake Erie: 
Plate I. (I) Clilamydomonas gracilis Snow. (II) Chlamydomonas communis Snow. (Ill) Chlamydomonas 
globosaSnow. (IV) Scenedesmus bijugatus var. flexuosus Lemm. ( V) Staurogenia apiculata 394 
II. (VI) Fusola yiridis Snow. (VII) Oocystis borgei. (VIII) Chodatella citriformis Snow. (IX) Pleuro- 
coccus regularis Artari 394 
III. (X) Pleurococcus aquaticus Snow. (XI) Chlorococcum natans Snow. (XII) Botrydiopsis eriensis 
Snow. (XIII) Botrydiopsis oleacea Snow 394 
IV. (XIV) Chlorosphaera lacustris Snow. (XV) Chlorosphaera parvula Snow. (XVI) Mesocarpus spec. 
(XVII) Ccelosphserium roseum Snow. (XVIII) Chroococcus purpureus Snow 394 
A More Complete Description of Bacterium truttas: 
Plate I. Bacterium truttae Marsh 411 
II. Bacterium truttae Marsh. Pigment produced in agar cultures 415 
Fishes of Hawaiian Islands: 
Plate I. (1) Dasyatis hawaiiensis Jenkins, new species. (2) Dasyatis sciera Jenkins, new species 420 
II. Gymnothorax thalassopterus Jenkins, new species 426 
III. Cypsilurus atrisignis Jenkins, new species 436 
IV. Deeapterus canonoides Jenkins, new species 442 
Shore Fishes of Hawaiian Islands: 
Plate I. (1) Carcharias insularum Snyder, new species. (2) Carcharias nesiotes Snyder, new species 538 
II. (3) Veternio verrens Snyder, new species. (4) Sphagebranchus flavicaudus Snyder, new species 538 
III. (5) Callechelys luteus Snyder, new species. (6) Aphthalmichthys hawaiiensis Snyder, new species. . . 538 
IV. (7) Gymnothorax nuttingi Snyder, new species. (8) Gymnothorax berndti Snyder, new species 538 
V. (9) Gymnothorax mucifer Snyder, new species. (10) Gymnothorax xanthostomus Snyder, new 
species 538 
VI. (11) Gymnothorax waialuae Snyder, new species. (12) Uropterygius leucurus Snyder, new species 538 
VII. (13) Exonautes gilberti Snyder, new species 538 
VIII. (14) Carangus cheilio Snyder, new species. (15) Carangoides ajax Snyder, new species 538 
IX. (16) Collybus drachme Snyder, new species. (17) Apogon erythrinus Snyder, new species 538 
X. (18) Cirrhilabrus jordani Snyder, new species. (19) Hemipteronotus jenkinsi Snyder, new species . . . 538 
XI. (20) Chaetodon corallicola Snyder, new species. (21) Holacanthus fisheri Snyder, new species 538 
XII. (22) Stephanolepis pricei Snyder, new species 538 
XIII. (23) Antennarius nexilis Snyder, new species. (24) Antennarius duescus Snyder, new species 538 
Fishes Collected in the Tortugas: 
Plate I. (1) Ctenogobius tortugse Jordan, new species. (2) Gnatholepis thompsoni Jordan, new species 544 
II. (2) Elacatinus oceanops Jordan, new species. (3) Ericteis kalisherae Jordan, new species 544 
Echinoderms of Woods Hole Region: 
Plate 1. (1,2) Asterias forbesi (Desor). (3,4) Asterias vulgaris Verrill 552 
2. (5-7) Asterias tenera Stimpson. (8, 9) Asterias austera Verrill 554 
3. (10, 11) Cribrella sanguinolenta (O. F. Muller). (12, 13) Solaster endeca (Retzius) 556 
4. (14,15) Asterias forbesi (Desor). (16,17) Asterias vulgaris Verrill. (18,19) Asterias austera Verrill. 
(20,21) Asterias tenera Stimpson. (22) Cribrella sanguinolenta (O. F. Muller). (23) Solaster endeca 
(Retzius) 556 
5. (24-27) Ophiopholis aculeata (Linnaeus). (28-30) Ophiura brevispina Say 558 
6. (31,32) Ophioglypha robusta (Ayres). (33,34) Amphipholis squamata (Delle Chiaje). (35,36) Gorgo- 
nocephalus agassizii (Stimpson) 56o 
7. (37, 38) Ophiura brevispina Say. (39,40) Ophioglypha robusta (Ayres). (41, 42) Ophiopholis aculeata 
(Linnaeus). (43,44) Amphipholis squamata (Delle Chiaje). (45-47) Gorgonocephalus agassizii 
(Stimpson) 560 
(48-52) Arbacia punctulata (Lamarck) 553 
9. (53-57) Strongylocentrotus drobachiensis (O. F. Muller) 564 
10. (58-62) Echinarachnius parma (Lamarck). (63, 64) Meilita pentapora (Gmelin) 564 
