THE ANNALS 
AND 
MAGAZINE OF NATURAL HISTORY. 
[FIFTH SERIES.] 
“.per litora spargite museum. 
Naiades, et circirm vitreos considite fontes: 
Polliee virgineo teneros hie carpite flores: 
Ploribus et pictum, divse, replete canistrum. 
At vos, o Nymph® Craterides, ite sub imdas ; 
Ite, recurvato variata corallia trunco 
Veilite muscosis e rupibus, et mihi conchas 
Ferte, Dese pelagi, et piugui conchylia succo.” 
N. Parthenii Giannettasii Eel. 1. 
No. 13. JANUARY 1879. 
I.— Supplementary Observations on the Anatomy of Spirilla 
australis, Lamarck *. By Prof. R. Owen, C.B.,F.R.S., &c. 
[Plates I.-III.] 
1 The Zoology of the Voyage of H.M.S. Samarang,’ 4to, 
1848, includes a monograph on this subject (pp. 6-17, pi. iv.), 
at the conclusion of which the following particulars are noted 
as “ still remaining to be determined :—such, for example, as 
the structure of the male organs and that of the female organs, 
particularly as to whether the oviduct be single or double, 
whether complicated by glandular enlargements or associated 
with nidamental glands ; the brain and cranium, the principal 
nerves, the tongue, beak, and lips; the structure of the eyes 
and the condition of the eyelids ; the relations of the shell of 
the Spirula , and especially of its last or open chamber, with 
the muscular system of the animal ”f. 
The materials on which the descriptions in the above 
u monograph ” were founded consisted of a headless speci¬ 
men with the hind end of the mantle torn off (referred to the 
Spirula Peronii , De Bl. {), of part of the mantle with shell 
attached of a Spirilla reticulata , Ow. § (taken by Dr. Bennett, 
* 1 Encyclopedie Methodique/ pi. 456. fig. 5. 
t Op.cit. p. 16. I Ibid. pi. iv. figs. 1, 4, 5, 6. 
§ Ibid. pi. iv. figs. ?>, 9, 10. 
Ann. & Mag. N. Hist. Ser. 5 Vol. iii. 
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