ACARIDEA. 
Arachn. 27 
pp. 589-595 ; development, anatomy, and biology of the different stages, 
pp. 595-654. The following terms denote the different stages of 
development Schadonophan-stadium, Larva, Nympho-chrysalis, Nym- 
pho-stadium, Nymphe, Teleio-chrysalis, Teliophan-stadium, Prosopon. 
The literature on the development of the different groups of Acari is 
reviewed ; particular reference being made to the anatomical researches 
of Treviranus, Croneberg, and Pagenstecker on T. holosericeum , and a 
belief expressed that Pagenstecker mistook T. fuliginosum' for that 
species. The word “ apoderma ” is applied to the “ Zwischenhaut ” of 
Claparede, which occurs in the egg-like shape into which the larva-nymph 
passes. 
Microtrombidium } g. n. for Trombidium purpureum y Koch, and pulcher - 
rimum, Haller ; Gf. Haller, JH. Ver. Wiirtt. xxxviii. p. 322, pi. v. fig. 8, 
Wurtemberg. 
Tanaupodes , g. n. for T. steudelli , sp. n., G. Haller, l. c. p. 325, pi. v. 
figs. 9 & 10. 
Gcclcobia latastii , Megn., described and figured; A. Berlese, Acari, 
Miriapodi, &c. fasc. 2, No. 1, pi. i. [no pagination]. 
Trombidium picturatum , p. 671, and T. albo-micans, p. 672, spp. nn., L. 
Koch, Yerh. z.-b. Wien, xxxi., Balearic Isles; T. spelceum, sp. n., G. 
Joseph, B. E. Z. xxvi. p. 16, Cavern in Lower Carniola. 
Rliyncholoplius stalitce, sp. n., Joseph, l. c. p. 15, Grotto God-jama, near 
Oberskril ; R. vernalis , sp. n., L. Koch, Yerh. z.-b. Wien, xxxi. p. 671, 
Balearic Islands ; R. phalangioides (D. G.), A. Berlese, Acari, Miriapodi, &o. 
fasc. 2, No. 9, pi. ix. [no pagination given]. 
Eupodid^:. 
Scyphim hamatus, sp. n., P. Kramer, Z. ges. Naturw. (3) vi. pi. iv. 
fig. 13 (no description given). [Omitted from Zool. Rec. xviii.] 
Hydrachnid^. 
Haller, L. Zur Kenntniss der Sinnes-borsten der Hydrachniden. 
Arch. f. Nat. xlviii. pp. 32-46, pi. iv. 
Treats, i., on the structure and function of the long bristles on the first 
pair of legs of Atax\ ii. on the scales or leaf- formed sense-hairs of the 
Acari ; iii. on the tactile hairs of the Ilydrachnidce ; iv. on the antenni- 
form hairs of Hydrachnids; v. on some other hair-form sense-organs 
whose function is supposed to be olfactory, tactile, and auditory ; vi. on 
two chitinous processes on the palpi. 
W. Saville Kent, under the heading of “ Water-spiders,” gives some 
hints and remarks on the rearing of Ilydrachnidce in confinement ; also 
on the mode of killing and preserving them for microscopic observation. 
Sci. Goss. 1882, p. 208. 
