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Cambarellus Stock Photos and Images
RF2M8DCGX–Orange dwarf Mexican crayfish (Cambarellus patzcuarensis) hiding behind driftwood, front view
RMW7MY8J–Fontal dwarf crayfish (Cambarellus schmitti) striped phase, Washington Co, Florida, USA. Controlled conditions
RF2M8DCEX–Dwarf Mexican orange crayfish (Cambarellus patzcuarensis), 'CPO' with one pincer temporarily missing
RF2M8DCH2–Orange Mexican dwarf crayfish (Cambarellus patzcuarensis) side view on marsilea plants in aquarium, closeup
RF2M8DCW7–Orange dwarf Mexican crayfish (Cambarellus patzcuarensis) climbing in Taiwan moss (Taxiphyllum alternans)
RMRHKY0Y–. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. RED CHROMATOPHORES OF CRAYFISHES 321 Since direct injection of freshly prepared extracts of eyestalks and supraesophageal ganglia plus the circumesophageal connectives of Orconectes into specimens of Orconectes never produced red pigment dispersion, we wished to learn whether these extracts could disperse red pigment in specimens of Cambarellus. Both eyestalks and the supraesophageal ganglia, with the circumesophageal con- nectives attached, of dwarf crayfish and Orconectes were removed and extracted as described above, so t
RMRHKXYK–. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. A -B. 0 I 20 I 2 HOURS FIGURE 3. Responses of the red chromatophores of one-eyed Orconectes on a white back- ground (A) and on a black background (B) to extracts of eyestalks and supraesophageal ganglia, with the circumesophageal connectives attached, of Orconectes clypeatus and Cambarcl- lus shufeldti. Half-filled circles are the control. Open symbols are eyestalk, closed symbols nervous tissue. Circles, tissue of Orconectes; triangles, tissue of Cambarellus. The responses of specimens of Orconectes on black and on white ba
RMRHKY0E–. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. -B 0 I 20 I 2 HOURS FIGURE 2. Responses of the red chromatophores of one-eyed Cambarellus on a white background (A) and on a black background (B) to extracts of eyestalks and supraesophageal ganglia, with the circumesophageal connectives attached, of Cambarellus shufeldti and Orco- nectes clypeatus. Half-filled circles are the controls. Open symbols are eyestalks, closed sym- bols nervous tissue. Circles, tissue of Cambarellus; triangles, tissue of Orconectes. The results are presented in Figure 2 where each point represents
RMRGW9J8–. Bulletin. Natural history; Natural history. August 1985 Crayfishes and Shrimps of Illinois 367. Fig. 9A-Cambarellus puer A, dorsal view of carapace; B. dorsal view of right chela; C, annulus ventralls; D, mesial view of gonopod of form I male; E, lateral view of gonopod of form I male; F, lateral view of gonopod of form II male. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Illinois. Natural History Survey Division. Ur
RMRHMNEH–. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 0 I 20 ! 2 HOURS FIGURE 8. Responses of the red chromatophores of Cambarellus on white (A) and on black (B) backgrounds to unboiled extracts of supraesophageal ganglia, with the circumesopha- geal connectives attached, of dwarf crayfish. Circles, extract administered immediately after boiling; dots, after two hours exposure to boiled carapace; circles filled on left side, after two hours exposure to unboiled carapace; circles filled on right side, control. meantime, been removed from six dwarf crayfish. Three of the carapace
RMRGW9JM–. Bulletin. Natural history; Natural history. August 1985 Crayfishes and Shrimps of Illinois 365. Fig. 91.—Total distribution of Cambarellus shufeldtii. excavates a chamber in the mud bottom of the slough or swamp as drying occurs and then seals the top of the chamber to prevent desiccation. Life History.—Form I males are present in Illinois collections (Table 5) during most months and peak in occur- rence in December, February, and March. In Louisiana, Penn (1942, 1950) found form I males in all months except September, with peaks in January, February, and July. Presumably, mating in C. shufe
RMRHNTFY–. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. LARVAL NEUKOSKCKETIOX 113 FINGERMAN, H., AND T. AUTO, 1960. Effects of eyestalk ablation upon neurosecretion in the supraesophageal ganglia of the dwarf crayfish, Cambarellus shujcldti. Trans, .-liner. Micr.Soc., 79: 68-74. GOMORI, G., 1939. Studies on the cells of the pancreatic islets. Anat. Rcc., 74: 439-460. GOMORI, G., 1941. Ohservations with differential stains on human islets of Langerhans. Amcr. J. Path., 17: 395-406. GOMORI, G., 1946. Staining of chromafnn tissue. Amcr. J. din. Path. (Tech. SuppL), 10: 115-117. GOMO
RMRGW0C5–. Bulletin. Natural history; Natural history. August 1985 Crayfishes and Shrimps of Illinois 353 II. Key to Illinois Crayfishes Based on Form I Males (i.e., males with corneous ter- minal elements on the gonopods) 1. Ischia of second and third peieiopods with hooks (Fig. 9). .Genus Cambarellus 2 1. Ischia of second pereiopods without hooks ....3 2. Terminal elements of gonopod straight (Fig. 53) Cambarellus shufeldtii (p. 363) 2. Terminal elements of gonopod curved at about right angle to shaft (Fig. 54) Cambarel- ^'^^ 53. Fig 54 lus puer (p. 366) 3. Central projection of gonopod large and bla
RMRGW9HP–. Bulletin. Natural history; Natural history. August 1985 Crayfishes and Shrimps of Illinois 369. Fig. 96,—Distribution of Cambarellus puer in Illinois; black dots = 1972-1982 collections. growth increment of 0.45 mm 'molt (Black 1966). .Sixteen form I males col- lected in Illinois ranged from 7.7 to 12.8 and averaged 10.4 mm CL. In Louisiana, females carrying eggs or young occur January-April, and August-September (Penn 1950). In Illinois, females carrying eggs were collected Marcfi-May, and females carrying young have been collected in May (Table 6). Ten Illinois females carrying eggs (colle
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