LIST OF ILLUSTRATIONS 



FIG. 



462. Asellus . ... 



463. Amphipoda .... 



464. Isopoda .... 



465. Shrimp and Prawn ... 



466. Scyllarus arctus . . ... 



467. Pagurus bernhardus 



468. Cancer pagurus . ... . . . 



469. Typical Brachyura . 



470. Squilla ... 



471. Orohestia caviuiana, anatomy 



472. Buphausia pellucida . . 



473. Nervous system of Crab 



474. Cypris-stage of Lepas 



475. Larvte of Crabs . . 



476. Diagram illustrating the hiutual relationships of the orders of 



Crustacea 



477. Dalmanites and Phacops 



478. Triarthrus beckii 



479. Peripatus capensis 



480. ,, „ ventral view of head 



481. ,, anatomy 



482. ,, tracheal pit 



483. „ nephridium .... 



484. „ novse zealandife, development 

 .485. ,, capensis . 



486. Scolopendrella immaculata 



487. Scolopendra 



488. Lithobius forficatus . 



489. Pauropus huxleyi 



490. Strongylostoma, development 



491. Periplaneta americana 



492. „ mouth-parts . 



493. „ americana, lateral view of head 



494. ,, muscular system . 



495. ,, anatomy 



496. „ salivai'y glands 



497. Trachea of caterpillar 



498. Periplaneta, tracheal system . 



499. ,, nervous system . 



500. ,, male reproductive organs 



501. ,, female reproductive organs 



502. Segmentation of ovum of Insect . 



503. Ventral plate of embryo Cockroach 



504. Embryo Cockroach . 



505. Lepisma . . ... 



506. Podura . . . • 



507. Locusta ... . . 



508. Ephemera 



585 

 586 

 587 

 588 

 589 

 589 

 590 

 591 

 .>92 

 594 

 595 

 596 

 59a 

 60C 



604 

 605 

 606 

 607 

 607 

 608 

 609 

 610 

 611 

 613 

 614 

 616 

 616 

 617 

 618 

 620 

 621 

 621 

 624 

 625 

 625 

 626 

 627 

 627 

 628 

 628 

 629 

 630 

 630 

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 632 

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 633 



