432 SIR WILLIAM TURNER 
Norpmann, A. von, Mikrographische Reitrage zur Naturgeschichte der wirbellosen Thiere, zweites Heft. 
Berlin, 1832. Penmnella sagitta, p. 121, pl. x. figs. 6, 7, 8. 
OpHeE.ius, J. L., Chinensia lagerstromiana, published in a collection of Theses entitled ‘ Amoenitates 
Academice of Linneus,” vol, iv. p. 257, fig. 3. Holmie, 1759. He gives a description of P. sagitta. 
In the references which I have seen to this species it is made to appear as if it had been described by 
Linneeus himself, and the name of his pupil Odhelius is not given, 
Oxen, Lehrbuch der Naturgeschichte, 1815, part iii. Allgemeine Naturgeschichte, vol. v. part i. p. 564; 
oder Thierreich, vol. ii. 2nd part. Stuttgart, 1835. 
Sars, G. O., “ Beskrivelse af en ved Lofoten indbjerget Rerhval (Balenoptera musculus),” Forhandlinger 7 
Videnskabs-selskabet i Christiana, p. 280. 1866. 
Scorr, ANDREW, “ Lepeophtheirus and Lernea,” Memoirs of Liverpool Marine Biological Committee. 
London, 1901. 
Sregnstrup and LirKen, Om Slegten Pennella, in Dansk. Vid. Selsk. Skriv., vol. v. p. 408, pl. xiv. 1861. 
Tuomson, G. M., “‘ Parasitic Copepoda of New Zealand,” Trans. New Zealand Inst., vol. xxi. p. 353, 
pl. xxviii. fig. 2, 1889. Describes Pennella histiophort. 
Turner, Wa., and Wirson, H. §., “On Chondracanthus lophit,” also “ On Lernzopoda dalmanni,” Trans.- 
Roy. Soc. Hdin., vol. xxiii. p. 67, pl. iii. and p. 77, pl. iv. 1862. 
Wricut, E. Percevat, “ On a new species of the Genus Pennella,” Ann. and Mag. Nat. Hist., 4th series, 
vol. v. p. 43, plate i. 1870. 
CoNCHODERMA., 
Darwin, C., Monograph on the sub-class Cirripedia. Part 1. The Lepadide. ay Soc. London, 1851. 
Hatuas, Sopuus, Vidensk. Medd. fra den Naturhist., vol. ix. Copenhagen, 1868. 
Meyer, Paut, “Carcinologische Mittheil.,” p. 53. Mittheilung. aus der Zoolog. Station zu Neapel, vol. i. 
Leipzig, 1879. 
Hosgx, P. P. C., “ Account of Conchoderma Virgatum, var. chelonophilus, obtained from the carapace of a 
Chelone,” Challenger Reports, part xxv. p. 55, pl. ii. figs. 13-15. 1883. 
Sars, G. O., Forhandling. i Vidensk, Selsk., p. 280, Christiania, 1866, also 1880. 
EXPLANATION OF PLATES. 
Prats I. 
The drawings in this plate were made from nature by Mr James T. Murray. 
Fig. 1. Pennella balenoptere seen from its ventral surface. Natural size. 
Fig. 2. Head, arms, and upper part of thoracic segment, to show the four pairs of rudimentary feet-like 
appendages ; enlarged. 
Fig. 3. Abdomen, showing the attachment of Conchoderma virgata to the upper end of the genito- 
abdominal segment. Natural size. 
Fig. 4. Pennate bristles detached from the caudate abdominal segment. x10. p. 423. 
Puate II. 
Fig. 5. Longitudinal dorsi-ventral section through the head and upper end of the body of Pennella. 
The arrangement of the striped muscles s,m. in the head, the relations of the csophagus CE. to the mid- 
ventral space V., to an cesophageal ganglion g. and to the areolated tissue ar. are shown. x8. p. 419. 
Fig. 6. A more highly magnified section through a part of the esophagus CZ., in which a portion of the 
free surface of its mucous lining with the longitudinal folds parallel to each other, also the fibres of the non- 
striped muscular wall, x.m., passing into the surrounding areolated tissue, ar., and forming mesenteries, are 
shown. x14. p. 421. 
