SCORPIONIDEA— ACARIDEA. 
259 
Megathis, g. n., id. 1. c. pp. 619-521. Ohisiince, Steck. : extremely like 
Chthonius, but with two large eyes ; a parallel form to the preceding, 
M. TcocM^ p. 521, pis. ii. figs. 9 & 10, 12-14, iii. figs, 1-4 & 6, desiderata^ 
p. 522, pi. iv. figs. 1-4 ‘ (described from a fragment), spp. nn., id. 1. c. 
“ India.” 
Ohisium trifidum^ sp. n., id. 1. c. p. 523^ pi. iv. figs. 6-8, Malacca. 
PHALANGIDEA. 
Gihocellus. g. n., allied to CyrrJiophthalmus, but, among other distinctive 
characters, has four, instead of two eyes ; considered by the author to 
form a passage from the Phalangids to the Pseudo- Scorpions. G. sude- 
ticus, sp. n., A. Stecker, SB. bohm. Ges. 1875, Bohemia. 
Egcenus sinister and E. clarii, spp. nn., E. Simon, Bull. Spc. Ent. Fr. 
(6) V. ccxxii. (c/. also pp. cxcvi. &. cxcvii.), Constantinople. 
Ischyropsalis adamii, sp. n., G. Canestrini, Atti Soc. Pad. ii, [1873] 
p. 50, Gulf of Squillace, Italy. 
Nemastoma dentigerum^ sp. n., id. I, c. p. 51, Padua. 
Liohunum socialissimum^ sp. n., 0. Koch, Abh. senck. Ges. 1873, p. 107, 
Casa Blanca, Morocco. 
Liodes larvatus, sp. n., G. Canestrini, Atti Soc. Pad. iii. [1874], p. 163, 
Calabria. 
PYCNOGONIDBA.* 
E. J. Miers, in “ Descriptions of New Species of Crustacea collected at 
Kerguelen’s Island by the Rev. A. C. Eaton,” Ann. N. H. (4) xvi. p. 76, 
describes Nymphon gracilipes and N. styligerum, spp. nn. In the latter, 
the form of the first pair of palpiform appendages is peculiar — a single 
joint only being developed ; this, if constant, would make the species the 
type of a new genus allied to Achelia^ Hodge. Also (1. c. p. 117) N. 
hrevicaudatum, sp. n., from the same locality. 
C. Heller, in Neue Crustaceen und Pycnogoniden gesammelt 
wahrend der k. k. Oster.-ungar. Nord Pol.-Expedition : vorlaiifige Mit- 
theilung,” Abh. Ak. Berl. Ixxxi. pp. 609-612, describes Nympfion graci- 
lipes and N. Mens, spp, nn. 
Nymphon spp. common in dredgings on the French coast in 100-200 
metres ; Fischer, J. Zool. iv. p. 300, footnote. 
ACARIDEA. 
On killing and mounting for microscopic examination j W. Saville- 
Kent, Nature, 1875, p. 406. 
Acari observed attached to the anterior wings of Catocala nupta (Lep .) ; 
Phipson, P. E. Soc, 1875, p. xxiii. 
* In deference to a note in Zool. Eec. xi. p. 220, by Prof, von Martens, the 
Recorder has included in the Arachnida (which is, as he also conceives, their 
natural place) those Pycnogonids which have come under his notice for 1875. — 
O. P. C. 
