. The Australian zoologist. Zoology; Zoology; Zoology. FLEMING 109. Fig. 1. Pecten jacobaeus byronensis Fleming. Holotype, Byron Bay, (Aust. Mus. C5243). X2. Judged by its rarity in collections, this form is restricted in distribution. It is probably a relict population surviving from a period before Pecten fumatus colonised New South Wales. Its presence may help to explain the variation in New South Wales scallops generally classed as fumatus. Typical fumatus (like Reeve's types, with high beaks, rounded ribs, and no inter- costal lamellae) is rather rare, occurring at Port Jackson and
. The Australian zoologist. Zoology; Zoology; Zoology. FLEMING 109. Fig. 1. Pecten jacobaeus byronensis Fleming. Holotype, Byron Bay, (Aust. Mus. C5243). X2. Judged by its rarity in collections, this form is restricted in distribution. It is probably a relict population surviving from a period before Pecten fumatus colonised New South Wales. Its presence may help to explain the variation in New South Wales scallops generally classed as fumatus. Typical fumatus (like Reeve's types, with high beaks, rounded ribs, and no inter- costal lamellae) is rather rare, occurring at Port Jackson and Jervis Bay (Thetis Station 54). Many other east Australian samples have squarish ribs and intercostal lamellae, at least on the flanks, characters that may be due to past or present gene flow from byronensis into the nearby population of fumatus. ACKNOWLEDGMENT. I am grateful to Miss Joyce Allan for facilities to examine collections in 1952 and to Dr. A. B. Walkom and Mr. D. F. McMichael for lending the type specimens for description. REFERENCES. 276-82. J. Proc. Roy. Soc. LVIII: Fleming, C. A. (1951).—J. de XC: Hodge Smith, T., and Iredale, T. (1924).- 157-68. Mayr, E. (1954).—Geographic Speciation in Tropical Echinoids. Evolution. VIII (1): 1-18. Schilder, F. A. and M. (1938).—Proc. Malac. Soc. Lonch. XXIII (3): 119-80. Tate, R. (1887).—Proc. Roy. Soc. Tasmania. 1886; 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 Royal Zoological Society of New South Wales; Royal Zoological Society of New South Wales. Proceedings. [Sydney, Royal Zoological Society of New South Wales]
Size: 1838px × 1360px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectzoology, bookyear1914
