Archive image from page 128 of Decapod crustaceans of the northwest. Decapod crustaceans of the northwest coast of North America .. decapodcrustacea00rath Year: 1904 DECAPODS 119 Rostrum long, narrow, grooved above, tapering to a narrow-acute tip which is curved strongly downward and much compressed laterally. There is no median gastric spine; but with a lens one can discern a scabrous granule in the spot where the spine usually occurs. The antennular pe- duncle has shorter segments than in C. alba, to which this species is nearly related; outer branch of flagellum as long as, or longer than


Archive image from page 128 of Decapod crustaceans of the northwest. Decapod crustaceans of the northwest coast of North America .. decapodcrustacea00rath Year: 1904 DECAPODS 119 Rostrum long, narrow, grooved above, tapering to a narrow-acute tip which is curved strongly downward and much compressed laterally. There is no median gastric spine; but with a lens one can discern a scabrous granule in the spot where the spine usually occurs. The antennular pe- duncle has shorter segments than in C. alba, to which this species is nearly related; outer branch of flagellum as long as, or longer than, the blade of the antennal scale. Antennae shorter than the body. Scale shaped fig. 59. cmnonsty. as in C. alba, but much shorter, being only a little over ChirikS island. ' half as long as the carapace. Maxillipeds with the antepenult segment outwardly dilated as in C. alba. The hands are slightly widened distally, shorter and broader than in C. alba, the length being barely twice the width; the anterior margin is more transverse than longitudinal. Second pair of feet more slender and a little longer than the third. Abdominal segments smoothly rounded above, not carinated; sixth segment not sulcated below; seventh segment a very little longer than the sixth. The uropods extend considerably beyond the telson. Each segment in the male bears a median spine on the ventral side. Dimensions.âLength of female 54 mm., of carapace mm., of acicle mm. Distribution.âSanta Cruz, California, in seine, April 12, 1897 [Alba- tross) ; Trinidad, Humboldt Co., California (Holmes); Chirikof Island, Alaska, anchorage, 9-14 fathoms, sand (W. H. Dall). CRANGON DALLI Rathbun. Crangon dalli Rathbun, Proc. U. S. Nat. Mus., xxiv, 889, 1902. Rostrum rather long and narrow, sides parallel for a portion of their length, edges upturned. Second antennular segment about one and a half times as long as the third; inner flagellum exceed- ing the acicle; outer flagellum considerably shorter. Acicle a


Size: 1045px × 1913px
Photo credit: © Bookive / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 1900, 1904, americana, archive, biodiversity, book, bookauthor, bookcentury, bookcollection, bookcontributor, bookdecade, bookpublisher, booksubject, bookyear, crustacea_north_america, drawing, historical, history, illustration, image, new_york, page, picture, print, rathbun_mary_jane_1860_1943, reference, smithsonian_libraries, vintage