PYCNOGONIDBA, ACARiDEA. Arachrt . 23 
Nymphon styligeriim, Miers, pi. xi. fig. 9, Kerguelen Island. Also T. 
orhiculare, sp. n., Wilson, Tr. Conn. Ac. v. p. 6, pi. ii. figs. 2 a-2 /, New 
York to Virginia. 
Ascor[i''\hynchuSy Sars, 1. c. p. 367. “ Probiscis permagna, trunci fore 
longitudinem seqiians, piriformis. Mandibulge parvse. Palpi longissimi, 
9-articulati ; pedes 8 articulati, accessorii 9-articulati.” A. abyssi^ sp. n., 
id. iUd., Northern Sea, 63-65° N. lat. 1° W., 1000-1500 fath. 
Pseudopallene^ Wilson, Am. J. Sci. (3) xv. p. 200. Differs from Pallene 
in the shorter neck, and in the ovigerous legs being 11-, instead of 
9- jointed. For Pallene hispida^ Stimpson, and P. discoidea, Kroyer. 
Anoplodactylus, id. ibid. Differs from PhoxicJiilidium in the number 
of the articulations of the ovigerous legs, and in the absence of auxiliary 
claws upon the dactylus. For P. maxillare, Smith, nec Stimpson, 
renamed lentus, pi. iv. figs. 3a-3 6; also P. petiolatum, Kroy., and ? P. 
vii'escens, Hodge. 
Colossendeis angusta, Sars, 1. c. p. 368, Northern Sea, 62®-63° N. lat., 
10- 4^’ E. long., 412-417 fath. ; length of body, 18 mm. 
Pallene empusa^ Wilson, Tr. Conn. Ac. v. p. 9, pi. iii. figs. 2a-2g, New 
England. 
PhoxicJiilidium minor., id. 1. c. p. 13, pi. iv. figs. 2 a-2 5, New England. 
Ammothea achel^^oides, id. 1. c. p. 16, pi. v. figs. 1 a~l e, Bay of Fundy. 
Nymphon macronyx and megalops, Sars, 1. c. pp. 365 & 366, Northern 
Sea, 62^-64° N. lat., 1° E.-10° W. long., 300-400 fath. 
ACARIDEA. 
Kramer, P. Beitrage zur Naturgeschichte der Milben. Z. ges. Naturw. 
(3) iii. pp. 519-561, woodcut. 
Discusses minutely the life-history and external anatomy of mites. 
R. McLachlan, J. L. S. xiv. pp. 120-122, in reporting on the Arach- 
nida collected during Nares’s Arctic Expedition, refers to 10 spp. of 
Bdellidce, Hydrachnidce, Oribatidce, and Sarcoptidce, of which only 2 are 
identified. 
Acari eating eggs of insects ; C. V. Riley, Canad. Ent. x. p. 58. 
Undetermined Acari found in the buccal cavity and stigmata of Helio- 
copris from Cochin China ; D. Sharp, Ent. M. M. xv. p. 154. 
C. F. George, Sci. Gos. xiv. pp. 34 & 35, figs. 21-23, records an abun- 
dance of “ white mites ” in exudations of sap under loose bark of black 
poplar. Among them (P parasitical) were found many “ Hypopi ” 
(fig. 24). 
C. W. Dale, in “ History of Glanville’s Wootton ” (London : 1878, 
sm. 8vo), p. 304, proposes the new generic and specific names of “ Homo- 
pteropJiagus Dorsettensis '' for ‘‘a very curious black parasite, about the 
size of a, mustard seed, adhering to the side of various species of the 
Homoptera, where the elytra join the thorax.” It “ looks like a little 
black bag ; ” he thinks it must belong to the Acari [1]. 
