. Introduction to zoology; a guide to the study of animals, for the use of secondary schools;. r three local exceptions, only in the rivers ofMaine. This C. Bartonii has the widest geographical distribution ofall the northern species. C. Blandingd is the most widely distributedof the southern species. C. pellucides is the blind species found inMammoth and Wyandotte caves. The lobster (Homarus) is, as we have already seen, thenearest living salt-water relative of the crayfish. Thereare only two species of the genus Homarus. One, Homarusamericanus, occurs on our Atlantic coast, the other,H. vuly
. Introduction to zoology; a guide to the study of animals, for the use of secondary schools;. r three local exceptions, only in the rivers ofMaine. This C. Bartonii has the widest geographical distribution ofall the northern species. C. Blandingd is the most widely distributedof the southern species. C. pellucides is the blind species found inMammoth and Wyandotte caves. The lobster (Homarus) is, as we have already seen, thenearest living salt-water relative of the crayfish. Thereare only two species of the genus Homarus. One, Homarusamericanus, occurs on our Atlantic coast, the other,H. vulyaris, is the lobster of Europe. On our Pacificcoast there is the spiny lobster, but this is not closelyrelated to the eastern lobster (Fig. 95). The national gov- 1 These crayfishes are blind, like the cave-inhabiting Cambarus ofAmerica. THE CRAYFISH AND ITS ALLIES 101 eminent has transplanted the Atlantic lobster to severallocalities on the Pacific coast, but it is not yet knownwhether it will thrive there. The American lobster rangesfrom Labrador to Delaware Bay, and from near shore to a. FIG. 95. — Palinurus, the spiny lobster. One-fourth nat. size. From Rathbun ; drawn by H. L. Todd. depth of 100 fathoms. It attains its greatest size on therocky shores in the cooler waters from Maine to migrates but little along the coast; in the fall, however,it moves out into deep water, and in the spring back again 102 ZOOLOGY into the shallower bays; the time of migration dependingupon the length of the season. It is said to be a nocturnalanimal, searching most actively for its food at night. Thesense which probably aids it most in this search is that ofsmell, as the attraction of the bait in the traps - - the so-called lobster-pots — testifies. In respect to food it is, likethe crayfish, omnivorous. Protection of the Lobster. — There has been much differ-ence of opinion in regard to the size at which a lobsterbecomes mature and before which, therefore, it cannot becau
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