Anelasma squalicola See Barnacles

Angling Young CD was an avid angler, and this led his older brother Erasmus Darwin to write to him: "As to the tackle you are quite welcome to have it all except the line whose beauties you don't appear to appreciate properly." (Cor-respondence,June 1825).

Three years later, CD described his passion in letters to his cousin W. D. Fox: The reason I delayed answering is that I have been on an expedition for a few days. For you must know that I am become a 'Brother of the Angle' under the superintendence of Mr Slaney (MP. for our town of Shrewsbury), who pronounces me a very flourishing Pupil. (Corresp. Aug. 19,1828). The term Brother of the Angle, emphasized by CD, is from Izaak *Walton's Compleat Angler, first published in 1753. One cannot help but wonder how much this work, and its many references to local variants (or *races) of widely distributed fish *species, such as Brown *trout, may have influenced CD's later thinking on *variation. Also, angling led him to keep a field list of fishes, based on Neill (1808; Browne 1995, p. 78; DAR 5: 28-35).

CD remained devoted to angling until shortly before the voyage of the *Beagle: I have been intending to write every hour for the last fortnight, but really have had no time: I left Shrewsbury this day fortnight ago, & have since that time been working from morning to night in catching fish or *beetles. This is literally the first idle day I have had to myself: for on the rainy days I go fishing, on the good ones Entomologizing. [...] And now I give you some account of our Welch trip. [...] Old E & myself staid a few days longer & had some pretty good trout fishing. (Correspondence, Aug. 25,1830).

Later, CD was to remember his passion: I had a strong taste for angling, and would sit for any number of hours on the bank of a river or pond watching the float; when at Maer1 I was told that I could kill the worms with salt and water, and from thatday I never spitted aliving worm, though at the expense, probably, of some loss of success (*Autobiography, p. 27; n. 1 identifies the house as that ofCD's uncle, Josiah Wedgwood). CD's experience with angling can be assumed to have contributed to the skill he displayed during the voyage of the Beagle, while acquiring his *collections of fish specimens, and while *fishing to supply the Beagle crew with fresh food.

Anguilla See Eel; Eels.

Annelids (-idae) Aclass of worms in which the surface of the body exhibits a more or less distinct division into rings or segments, generally provided with appendages for locomotion and with gills. It includes the ordinary marine worms, the earthworms, and the leeches (Origin VI, p. 431; by ordinary marine worms, CD means bristle worms, or polychaetes, of which he often uses the genus Nereis as a representative. Hence his vision of chalk-making nereidous animals in the *Cretaceous. See also Dohrn.)

Aphritis spp. See Thornfishes.

Apistus A genus of scorpionfishes to which *Jenyns (Fish, p. 163) assigned a specimen collected by CD at *King George's Sound, Australia. He also felt that this specimen, though sharing a number of features with Apistus niger, now Tetraroge niger (Cuvier, 1829), Family Tetrarogidae, was 'distinct' from it.

This is confirmed by Gomon etal.(1994), who point out that the range of T. niger does not extend to southern Australia. This leaves open the true identity of the specimen collected by CD.

Aplochiton spp. See Galaxiidae.

Aplodactylus punctatus See Marblefishes.

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