. The Cambridge natural history. Zoology. Fig. 383.—Pectoral arch (left side) of Gastrosteiis aculeatus. (After Parker.) d Clavicle ; cor, coracoid ; pt, pterygials ; sc, scapula ; scl, supra-claviole. Four genera : Gastrosteus, Apeltes, Uucalia, Spinachia. The little Three-spined and Two-spined Sticklebacks {Gastro- steus aculeatus and G. pungitius), which include many varieties that have been regarded as distinct species, are among the best known of our British Fishes. They are remarkable for the perfect indiffer- ence with which they can be transported from fresh into salt water, and vice v
. The Cambridge natural history. Zoology. Fig. 383.—Pectoral arch (left side) of Gastrosteiis aculeatus. (After Parker.) d Clavicle ; cor, coracoid ; pt, pterygials ; sc, scapula ; scl, supra-claviole. Four genera : Gastrosteus, Apeltes, Uucalia, Spinachia. The little Three-spined and Two-spined Sticklebacks {Gastro- steus aculeatus and G. pungitius), which include many varieties that have been regarded as distinct species, are among the best known of our British Fishes. They are remarkable for the perfect indiffer- ence with which they can be transported from fresh into salt water, and vice versa, and for the elaborate nests which the males build. FlQ. 384.—Gastrosteiis aculmtus. x 1. (After Goode.) in fresh or brackish water, and over which they watch with the greatest vigilance after the female has deposited her relatively large eggs.'^ These nests are made of weeds and twigs fastened together by threads secreted by the kidneys of the male. The ' On the nesting habits, cf. Coste, Mim. Acad. Sci. Paris, x. 1848, p. 575, PI.; "Warington, A7in. Mag. Nat. Hist. (2) x. 1852, p. 276 ; Prince, Ann. Mag. Nat. Hist. (5) xvi. 1885, p. 487, PI. xiv. On the spinning organ : Mobius, Arch. Mikr. Anat. XXV. 1886, p. 554, PL 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 Harmer, S. F. (Sidney Frederic), Sir, 1862- ed; Shipley, A. E. (Arthur Everett), Sir, 1861-1927. ed. [London, Macmillan and Co. , Limited; New York, The Macmillan Company
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