LIST OF ILLUSTRATIONS xxix 



no, PAGE 



461. Gammarus 584 



402. Asellus 685 



403. Amphipoda 586 



404. Isopoda 587 



405. Shrimp and Prawn 588 



4 till. Scyllarus arctus 589 



407. Pagurus bernhardus 589 



408. Cancer pagurus . . . . 590 



409. Typical Brachyura 591 



470. Squilla 592 



471. Orchestia cavimana, anatomy 594 



47•- , . Euphausia pellucida 595 



473. Nervous system of Crab 590 



474. Cypris-stage of Lepas 598 



475. Larvse of Crabs 000 



470. Diagram illustrating the mutual relationships of the orders of 



Crustacea . . . 004 



477. Dalmanites and Phacops 005 



478. Triarthrus beckii 000 



479. Peripatus capensis 007 



480. ,, ,, ventral view of head . . . . . . 007 



481. ,, anatomy 008 



482. „ tracheal pit 009 



483. ,, nephridium 010 



484. ,, novse zealandiae, development . . . • . .011 



485. ,, capensis 013 



480. Scolopendrella immaculata 015 



487. Scolopendra , 010 



488. Lithobius forficatus 010 



489. Pauropus huxleyi 017 



490. Strongylostoma, development 018 



491. Periplaneta orientalis 020 



492. ,, mouth-parts 021 



493- ,, americana, lateral view of head 021 



494. ,, muscular system . . . 024 



495. ,, anatomy 025 



490. ,, salivary glands 635 



497. Trachea of caterpillar 020 



498. Periplaneta, tracheal system 027 



499. ,, nervous system 027 



500. ,, male reproductive organs 028 



501. ,, female reproductive organs . . . . . 028 



502. Segmentation of ovum of Insect 029 



503. Ventral plate of embryo Cockroach 030 



504. Embryo Cockroach 030 



505. Lepisma 632 



500. Podura 032 



507. Locusta 033 



508. Ephemera 633 



