ILLUSTRATIONS. 



PLATES. 



Page. 



A CESTODE PARASITE IN THE FLESH OF THE BUTTERFIS1I: 



Plate I. (1) Specimen of butterfish laid open to show cystf -' 5) Mi. rosoopical drawings of cysts and blas- 

 tocysts. (6) Cyst from intestine of squeteague 132 



II. (7) Cyst, blastocyst, and scolex. (8) Blast". ROlex emerging. (9) Scolex removed from 

 blastocyst. (10) Part of bothrium. (11) cm., of the accessory organ Efer- 

 ent views of probosci lee. (17) Cyst and blastocyst, with Bcolex and muscle tissue of host, com- 

 pressed. (18-19) Sections of muscle tissue with cysts 312 



A study of Twin Lakes, Colorado: 



Plate III. View of Twin Lakes from side of Mount I-'.lliert 151 



Hawaiian ClRRIPEDI \: 



Plate IV. (1-2) Scalpellum hawaiensc. (3 4> ScalpeUum paclficum pis lmwaicnsis. (6) PcbcI- 



laamabellum. (7) Alepc re ! U ; pel irinats 9 10 Verruca halotheca 190 



V. (1-8) Catophragmus danvini 190 



ClRRirEDIA FROM PACIFIC COAST: 



Plate VI. (1) Scalpellum phantasma. (2-6) Scalpellum larva alpeUum californlcu 



ScalpeUum calilomicum. (9-11) Scalpellum proxlmum (12) Scalpello 13) Scalpel- 

 lum californicum -"'I 



vil. (i-:i) Scalpellum gruvelianum. (4) Scalpellum gruvellaiium secundum i-6 Balanu galeatus. 



(7-14) Balanus evermanni -'<>4 



VIII. (1-4) Balanus evermanni. (S-8) Balanus aquila 204 



IX. (1 7) Balanus flos. (8-11) Balanus galeatus 204 



X. Hi Balanus evermanni. (-'! Balanus aquila 204 



XI. (I) Balanus evermanni. (2) Balanus aquila ' ' 



Fishes of Hawaii: 



Plate XII. (1) Caprodon sehlegeli. (2) Thalassomn ncanls 218 



XIII. (l) Anampses godefiroyi. (2) Cailyodon persplcillatus 218 



Fishes of Alaska: 



Plate XIV. (1) Argyrosomus alascanus. (2) Osmerus albatrossis 234 



XV. (I) Salmo clarki. (2) Hexagrammos lagocephalus 258 



XVI. Sebastodcs aleutinnus 284 



XVII. (1) F.nophrys claviger. (2) Oncocottu* hexacornls 318 



XVIII. (1) I.ii>ariscyclopus. (2) Liparis herschelinus 332 



XIX. Liparis cyclostigma 332 



XX. (1) Crystallichthys mirabllis. (2) Prognurus cypselurus 332 



XXI. (1) Lumpenus medius. (2) Bothrocara mollis 3M 



xxil. Bogoslovius clarki ' 



XXIII. Humpback salmon, adult male 360 



XXIV. Humpback salmon, breeding male uai 



XXV. I Iuii 1 1. back salmon, adult female. 360 



XXVI. Humpback salmon, br line female 360 



XXVII. Dog salmon, breeding male 360 



XXVIII. Dog salmon, breeding female 360 



XXIX. Chinook salmon, adult male ". 360 



XXX. Chinook salmon .adult female 360 



XXXI. Silver or coho salmon, adult male 360 



XXXII. Silver or eoho salmon, breeding male 360 



XXXIII. Red salmon, adult male 360 



XXXIV. Red salmon, breeding male 360 



XXXV. Red salmon, adult female 360 



XXXVI. Red salmon, breeding female 360 



X X XVI I . Alaska cutthroat trout 360 



X X X V 1 1 1 . Steelhead trout 360 



XXXIX. Alaska rainbow trout 360 



X L. Dolly Varden trout 360 



XLI. Alaska grayling 360 



XLII. Red rockfisb 360 



