. Bulletin - United States National Museum. Science. Distribution.—Messina (Claus); Mediterranean (Giesbrecht); North Atlantic (Cleve) ; Ked Sea, Indian Ocean (Thompson and Scott); Adriatic (Car, Steiier, Pesta). Color.—Body rather opaque, with a varying extent of red and yellow pigment, especially around the mouth and in the bases of the appendages; eye red; eggs blue, the color deepening with development. Female.—Head indistinctly separated from first segment; third and fourth segments fused, the third lappets broadly acuminate and reaching beyond the center of the genital segment; fourth la


. Bulletin - United States National Museum. Science. Distribution.—Messina (Claus); Mediterranean (Giesbrecht); North Atlantic (Cleve) ; Ked Sea, Indian Ocean (Thompson and Scott); Adriatic (Car, Steiier, Pesta). Color.—Body rather opaque, with a varying extent of red and yellow pigment, especially around the mouth and in the bases of the appendages; eye red; eggs blue, the color deepening with development. Female.—Head indistinctly separated from first segment; third and fourth segments fused, the third lappets broadly acuminate and reaching beyond the center of the genital segment; fourth lappets short and exceptionally broad, with acute points; sec- ond segment also with short acute lappets; genital segment, abdomen, and caudal rami in the proportion of 3:1: 2. Seta on basal segment of second antenna much longer and stouter than the one on the second segment. Total length, mm. Male.—Body much narrower than in the female; lappets of third segment not reaching center of genital segment; fourth lappets narrower; genital segment, abdomen, and caudal rami in the proportion of 4:2:3. Genital segment with a broadly rounded lobe on either side of the ventral surface near the posterior end, carrying the greatest width of the segment considerably behind the center. Total length, mm. Remarks.—This species has been reported in the Atlantic by Cleve as far north as latitude 45° N. The exceptional width of the lap- pets of the fourth segment is one of the best characters for recogni- tion of the species. CORYCAEUS VENUSTUS Dana FlQUEE 219 Corycaeus venustus Dana, Proc. Amer. Acad. Arts and Sci., vol. 2, p. 39, 1849.— Giesbrecht, Fauna und Flora des Golfes von Neapel, vol. 19, p. 659, pis. 4, 51, 1892. Occurrence.—Both sexes were taken in a surface tow on Georges Bank, September, 1874. Distribution.—Kingsmill Islands (Dana); tropical Atlantic (Brady); tropical Pacific (Giesbrecht); Red Sea, Indian Ocean. PiGUHB 218.—Corycaeus ovalis: a. Femal


Size: 857px × 2916px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience