X BULLETIN OF THE UNITED STATES FISH COMMISSION. 
Plate CIII.— Figs. 126 i to 126 iv and 127 to 130 278 
CIV— Figs. 131 to 138 278 
CV. — Figs. 139 to 145 278 
CVI.— Figs. 146 to 148 278 
evil.— F igs. 149 to 151 278 
Figures in Test : 
Fig. 1. Ideally symmetrical 32-cell stage 213 
2. Variation in frog’s segmentation Imitating Teleostean segmentation 215 
3. Diagrammatic section to illustrate formation of randwulst 219 
4. Diagrammatic section through a blastoderm to illustrate Gotte’s account of the development of the 
randwulst and germ ring 222 
5. Transverse vertical section through frog embryo to show partial delamination of mesoblast 229 
6. Diagram to illustrate formation of invaginate groove as it is supposed to take place according to the 
“principle of unequal gi-owth” 238 
7. Diagram of closing blastopore of Triton 261 
8. Diagram to illustrate Haeckel’s idea of Teleostean gastrulation 262 
9. Diagram of early Teleostgastrula 263 
10. Diagram of Teleost gastrula not long before Blastopore closure 264 
11. Median longitudinal section through frog’s gastrula 265 
12. Diagram to illustrate Kupffer’s theory of the Amniotic gastrula 269 
FISHING GROUNDS OF BRISTOL BAY, ALASKA. 
Plate CVIII. — Chart of Bristol Bay and Alaska Peninsula, Alaska 288 
CIX. — Chart of Lower Nushagak River, Alaska 288 
CX. — Chart of Port Holler and Herendeen Bay, Alaska 288 
INVESTIGATION OP THE OFFSHORE FISHING GROUNDS OF THE GULF OP MEXICO 
ADJACENT TO THE COAST OP FLORIDA. 
Plate CXI. — Chart showing the work of the Grampus January 27 to April 10, 1887 312 
Figure in text: 
New species of Eel {Sphagebranchus kcndalli) 310 
THE GIANT SCALLOP FISHERY OF MAINE. 
Plate CXII. — Map showing the extent and location of beds of the Giant Scallop operated on the coast of Maine 
during the year 1889 313 
CXIII. — Giant Scallop {Pecten magdlanicus) 314 
CXIV.— Scallop Dredge .322 
CXV. — Towing a Scallop Dredge oiF Mount Desert 324 
CXVI. — Scallop Grounds at mouth of Bagaduce River, Maine 325 
LIFE HISTORY OF A PARASITE INFESTING THE TROUT OF YELLOWSTONE LAKE. 
Plate CXVIL— Pigs. 1 to 16 358 
CXVIII.— Figs. 17 to 27 358 
CXIX.— Figs. 28 to 34 358 
OCCURRENCE OP PROTOZOAN PARASITES ON CYPRINOID FISHES IN OHIO. 
Plate CXX. — Protozoan Parasites of Minnow 361 
THE KING CRAB FISHERY OF DELAWARE BAY. 
Plate CXXI . — "King Crsth {Limuluspolyphemus) 363 
CXXII.— Pound-net for catching King crabs and Fish 364 
CXXIII. — Stake weir for King crabs 366 
PHYSICAL INVESTIGATIONS OFF THE NEW ENGLAND COAST. 
Plate CXXIV. — The Grampus under sail 391 
eXXV. — Sounding Apparatus in operation 395 
CXXVL— No. 1 : 428 
CXXVIL— No. 2 429 
CXXVITL— No. 3 430 
CXXIX.— No. 4 : 431 
eXXX.— No. 5 432 
