. The Australian zoologist. Zoology; Zoology; Zoology. 218 NUDIBRANCHS This is the first record of R. gracilis from both New South Wales and Australia. Previous records are from Camiguin Island, Mindanao Sea, Philippines (Bergh, 1877), Saleyer Island, Indonesia (Bergh, 1905), and Japan (Baba, 1949). While the above description was in proof, a second specimen was received for study. It was collected and photographed by Mr. Geoffrey Biddle, at Minnie Waters, east of Grafton, northern New South Wales during March 1966; Australian Museum reg. no. In life it was about 28 mm. long, and as p
. The Australian zoologist. Zoology; Zoology; Zoology. 218 NUDIBRANCHS This is the first record of R. gracilis from both New South Wales and Australia. Previous records are from Camiguin Island, Mindanao Sea, Philippines (Bergh, 1877), Saleyer Island, Indonesia (Bergh, 1905), and Japan (Baba, 1949). While the above description was in proof, a second specimen was received for study. It was collected and photographed by Mr. Geoffrey Biddle, at Minnie Waters, east of Grafton, northern New South Wales during March 1966; Australian Museum reg. no. In life it was about 28 mm. long, and as preserved measures 17 mm. long, mm. high and 4 mm. wide. Live coloration was almost identical with that of the first specimen with the exception that orange lines are present dorsally and laterally (instead of rows of orange spots, each spot capping a pustule). The specimen is very similar in colour to N. rubroocellata Bergh (1905: pi. 4, fig. 14) and strengthens the suggestion that this species is synonymous with R. gracilis. Other data from this second specimen are as follows. Body pustular, skin tough, rhinophores with 20 fine lamellae, and branchiae five in number. Radula small (length about 1 mm.), half as wide as long, colourless, and with formula 28 x ; rhachidian plates present in 28 rows, wider and more curved than in Figure 1; lateral teeth present in 25 rows, rather stronger than in the latter figure but with the same short second cusp; marginals present in 22 rows, each plate distinct, the outermost larger than in the Japanese material (Baba, 1949: text fig. 39). Uterine duct very much shorter than in Figure 3 with its point of insertion with the vagina lying in the crotch of the latter and the duct of the spermatocyst. Thus the vesicles are in vaginal connection as stated above. ROBOASTRA AR1KA sp. nov. (Figs. 4-6). Material: On reef near Johnson's Reef, south end of Lord Howe Island, January 1963, 1 specimen (Holotype) collected by Miss Julie Booth, Au
Size: 2573px × 971px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectzoology, bookyear1914
