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 MARINE ZOOLOGY web. Not uncommon in the trawl. Hast- ings. SOLASTERID^ 9. So/aster papposus, Fabricius. The 'sun' starfish, usually having thir- teen rays and covered with spinous papil- lae. Colour, purplish red. Not uncommon in the trawl. Hastings. EcHINASTERIDi€ 10. Henricia sanguinolenta, O. F. MUller.* Hastings. ASTERIID^ 11. Asterias ruiens, Linnaeus. The common five -fingered starfish. Very common. Hastings. 12. Asterias hispida, Penn.t Brighton. 13. Asterias aurantiaca.f Brighton. OPHIUROIDEA Ophiolepidid^ 14. Ophiura ci/iaris, Linnaus. This species has five arms, smooth and snake-like, and is of a grey-bufF colour. Common in the trawl. Hastings. 15. Ophiura albida, Forbes.t Brighton. Ophiothrycid^ 16. Ophiothrix fragilis, Abilg. Species with five very spiny arms, and one in which the variation in colouring is absolutely infinite. The most usual colours are white, salmon, pink, red, sage-green, grey, brown, etc. When handled alive they readily detach fragments of the arms, so that it is almost impossible to secure a complete specimen. When however the fishermen's nets are hung up to dry and the brittle stars are allowed to dry un- handled they may be taken in perfect con- dition, the arms displaying every possible curve and contortion. They are known by the fishermen as ' castle cats.' Not a shore species. Hastings. Amphiurid^e 1 7. Amphiura elegans, Leach. A small species, common upon the rocks at low water. Hastings. 18. Ophiocnida brachiata, Montague. A species with five very long arms. Rare. Hastings. ECHINOIDEA ECHINID^ 19. Echinus esculentus, Linnseus. (?) Hastings.* Brighton. t 20. Echinus mi/iaris, Gmel. Test circular, mouth central, anus apical ; colour purple. Very common in the trawl and sometimes met with at extreme low tide. Hastings. 21. Strongylocentrotus lividus, Lamarck.t Brighton. 22. Strongylocentrotus droebachiensis, O. F. Milller.t Brighton. Clypeastrid^ 23. Echinocyamus pusillus, O. F. MUller. A small depressed, heart-shaped species, measuring about inch in length ; colour, green ; mouth, central ; vent, midway be- tween the mouth and margin. Trawled ; not uncommon. Hastings. Spatangid.*: 24. Spatangus purpureus, O. F. MUller. A large heart-shaped, purple species. The mouth is situated midway between the centre and the margin ; the spines upon the under surface are a favourite habitat of the minute bivalve mollusc Montacuta substriata. Trawled in rather deep water ; somewhat rare. Hastings. 25. Echinocardium cordatum, Penn. Species heart-shaped, with rather fine spines ; colour, grey ; test, mouse-like ; mouth midway between the centre and the margin. Rather common in the trawl, and occasionally cast on shore. Hastings. BRACHIOPODA INARTICULATA Craniid^ I. Crania anomala.f Brighton. MOLLUSCA AMPHINEURA POLTPLACOPHORA Chitonid^ 1. Tonicella ruber, Lowe.t Brighton. 2. Callochiton iavis, Montague.t Brighton. 95