A History of Crustacea: Recent MalacostracaK. Paul, Trench, Trübner, 1893 - 466 pagini Author's experiences bartending in Red Hook (Brooklyn), New York. |
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Pagina 36
... outer side the exopodite . For these terms the shortened forms exopod and endopod will here be preferred - exopod for exopodite , endopod for endopodite and protopodite combined and peduncle will be used for a variable number of basal ...
... outer side the exopodite . For these terms the shortened forms exopod and endopod will here be preferred - exopod for exopodite , endopod for endopodite and protopodite combined and peduncle will be used for a variable number of basal ...
Pagina 37
... not found at all , in others it is only rudimentary , whereas , on the other hand , among the Macrura it is not unfrequently much longer than the outer flagellum . Mr. 6 Spence Bate suggests that its function may consist in.
... not found at all , in others it is only rudimentary , whereas , on the other hand , among the Macrura it is not unfrequently much longer than the outer flagellum . Mr. 6 Spence Bate suggests that its function may consist in.
Pagina 38
... outer branch . In some genera of the Macrura , for example Palamon and Alpheus , the principal flagellum divides at some distance from its base into two branches . In the Squillidæ , also , there are three flagella . 3. The third ...
... outer branch . In some genera of the Macrura , for example Palamon and Alpheus , the principal flagellum divides at some distance from its base into two branches . In the Squillidæ , also , there are three flagella . 3. The third ...
Pagina 41
... outer side , frequently termed the flabellum or fan , and compared by Milne - Edwards to a ventilating register ( see Plate XI . ) . This species of valve is in constant and rapid vibration , in most cases forcing the water which has ...
... outer side , frequently termed the flabellum or fan , and compared by Milne - Edwards to a ventilating register ( see Plate XI . ) . This species of valve is in constant and rapid vibration , in most cases forcing the water which has ...
Pagina 65
... outer angle of the orbit does not project laterally beyond the teeth of the antero - lateral margin , of which more than one , usually from five to nine , are developed . The last legs of the trunk are commonly adapted for swimming ...
... outer angle of the orbit does not project laterally beyond the teeth of the antero - lateral margin , of which more than one , usually from five to nine , are developed . The last legs of the trunk are commonly adapted for swimming ...
Alte ediții - Afișează-le pe toate
A History of Crustacea: Recent Malascostraca Thomas Roscoe Rede Stebbing Nu există previzualizare disponibilă - 2016 |
Termeni și expresii frecvente
adult Amphipoda animal Anomura apex appendages basal joint Beddard belong Brachyura branchiæ branchial branchial cavity Budde-Lund burrow carapace character chelate chelipeds claws crab Crustacea Cumacea Dana depth described developed distinct distinguished dorsal epipod exopod eye-stalks eyes Fabricius fathoms female fifth joint fifth pair flagella flagellum fourth joint Fritz Müller front genera genus Giard and Bonnier gnathopods Haan Herbst inch inner branch Isopoda Kröyer larvæ larval last pair Latreille Leach limbs Linn Macrura Malacostraca male mandibles margin maxillæ Mediterranean Miers Milne-Edwards Mysis narrow outer branch pair of legs pair of trunk-legs pairs of pleopods palp parasitic peduncle peræon peræopods plates pleon pleopods regions Risso rostrum rudimentary S. I. Smith Sars second antennæ second joint second maxillipeds setæ short side sixth segment slender specimens Spence Bate spines Stimpson sub-order telson terminal joint third maxillipeds three pairs three-jointed tribe trunk two-jointed type species uropods ventral
Pasaje populare
Pagina 155 - Then turning round its body, by the aid of its posterior and narrow pair of pincers, it extracts the white albuminous substance. I think this is as curious a case of instinct as ever I heard of, and likewise of adaptation in structure between two objects apparently so remote from each other in the scheme of nature, as a crab and a cocoa-nut tree.
Pagina 154 - Liesk assures me that he has repeatedly seen this effected. The crab begins by tearing the husk, fibre by fibre, and always from that end under which the three eye-holes are situated ; when this is completed, the crab commences hammering with its heavy claws on one of the eye-holes till an opening is made.
Pagina 81 - ... a perfect shell like the former ; it is however remarkable that during this change there are some stony concretions always formed in the bag, which waste and dissolve gradually as the creature forms and perfects its new crust.
Pagina 155 - ... yields as much as a quart bottle full of limpid oil. It has been stated by some authors that the Birgos crawls up the cocoa-nut trees for the purpose of stealing the nuts: I very much doubt the possibility of this; but with the Pandanus* the task would be very much easier. I was told by Mr. Liesk that on these islands the Birgos lives only on the nuts which have fallen to the ground.
Pagina 81 - ... he gets rid of his old shell and is fully provided with a new one. How long they continue in this state is uncertain, but the shell is observed to burst both at the back and sides to give a passage to the body, and it extracts its limbs from all the other parts gradually afterward.
Pagina 81 - August the crabs fatten again and prepare for mouldering, filling up their burrows with dry grass, leaves, and abundance of other materials : when the proper period comes each retires to his hole, shuts up the passage, and remains quite inactive until he gets rid of his old shell and is fully provided with a new one.
Pagina 281 - ... spines, which shut into corresponding sockets, arranged in a groove in the next joint, which also bears smaller spines. By means of this singular organ they can hold their prey securely, and can give a severe wound to the human hand, if handled incautiously. It also uses the stout caudal appendages, which are armed with spines, very effectively. The colors of this species are quite vivid, considering its mud-dwelling habits. The body is usually pale green or yellowish green, each segment bordered...
Pagina 154 - The front pair of legs terminate in very strong and heavy pincers, and the last pair are fitted with others weaker and much narrower. It would at first be thought quite impossible for a crab to open a strong cocoa-nut covered with the husk, but Mr. Liesk assures me...
Pagina 355 - Hay, in recently observing the habits of ScyphaccUa arenicola. finds that it also burrows in the sand. The Serolidie, according to Studer, " live by preference on sandy ground, into which they burrow with their flat bodies up to the caudal plate." Whitelegge speaks of the paguroid habits of certain Isopods, which "live in small univalve shells and in company with young hermit crabs.
Pagina 141 - ... five most minute cups are placed which seem to act in the same manner as the suckers on the arms of the cuttle-fish. As the animal lives in the open sea, and probably wants a place of rest, I suppose this beautiful and most anomalous structure is adapted to take hold of floating marine animals.