19

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Hist. Nat. des Crust. Milne Edwards.

p. 561 Canary isld crusts. from Africa, & seas of Europe & even of America attributes these to Gulf stream reflexed from Azores.) 2 peculiar species.

p 564 forms of creatures with great relation to India (v. Siebold) (good contrast with the land productions which are Europæan) p. do near Kamchatka analogous forms to Scandinavia.

p. 565 Galapagos a focus. Cumings crabs described by Bell

p 565 A Graspus & Plagusia on coast of Chile identical with species of Australia (but they are rather wide ranging animals.

p 567 does not know one species common to Europe & United states or Antilles

[in margin:] I have got Book

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p. 572 the Néphrops inhabits coast of Norway - is found at Nice & in Adriatic, not found on intermediate Atlantic shores on Le Mancha.

p 573. the Thalamites admète, common in seas of Asia, found at Canaries; it & another must apparently have come by Red Sea.

p. 574 Crust. very numerous in individuals in Arctic ocean, but few in species & the development becomes higher & higher the nearer to the Tropic - in the north not nearly all the great families are represented (are there any Arctic genera of shells?) there are many tropical genera not found in North.) The higher families not found far north in gradation; In each tribe the most perfect & complicated & developed forms (p. 585 gives instances)) are found in the

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hotter countries - thus in tropics the fresh-water crabs are Brachyourous (which is highest) in temperate they are Macrourous.

p. 584 On average size in each division largest in hot.

p. 588 The temperate regions of both hemispheres have their representatives; thus Europe. U. states, Crimea, Madagascar Chile, New Holland, but genus entirely absent in torrid zone. so with some sea-species of Astacus Two other genera in - Many other cases given. (The torrid zone must once have been temperate. The appearance of great mammifer after ice-period, explained by their migration from south, then become torrid; but all the Tropical must have been lately created a great difficulty.)

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Limulus (sub-class to itself) & most abnormal forms, & I see is found as far back as Carboniferous period

p 433 in the Crust suceurs & Copepodes the limbs se deforment par les progress de l' âge et disparaissent quelquefois completement." - no particular given under the species - Normann is most likely authority. - ask Owen important for me, like Tucotuco's blindness. -

Amongst the Copepodes there is male crust with some of the legs different on right & left side- not wonderful

 

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Do not crustacea metamorph quickly, had to explain no species in common in U. States & Europe. Many genera in N & S temperate, not f. in Torrid zone.