20 Crust. 
CRUSTACEA. 
Palinurus longipes, new name for dasypus (M.-Edw.), specimens from 
Monrovia and St. Thom4, W. Africa, described, P. sulcatus (Lam.) and 
fasciatus (Fabr.) being also referred to this species, and hrevipes, new 
name for ornatus (Fabr.), specimens from Mazatlan, the Amur reef [?], 
Zanzibar, and Manila, described ; Pfeifer, 1. c. pp. 41-46. 
Senex, new name for Fanulirus (Gray), which is rejected as being a 
mere anagram of Palinurus ; id. L c. p. 30. [Linne himself has used an 
anagram for a generic name in Botany, viz., Mahernia of Hermania. 
Rec.] 
Palinurus guttatus (M.-'Edw.)—japonicus (Haan) = echinattis (Smith) 
= americanus (Lam.), specimen from the Sandwich Islands described, 
aud.femoristriga (Martens) = guttatus (Haan), specimen from New 
Guinea described ; the furrows on the abdominal segments can be inter- 
rupted or not in the same species. Id. 1. c. pp. 30-38. 
Arceosternus, g. n., sternum rectangular, not dilatated behind, cephalo- 
thorax oblong, subcyliudrical, hairy, without spines. A. wieneckii^ sp. n., 
Benkoolen, Sumatra. De Man, Notes Leyd. Mus. iii. pp. 131-137, and 
Tijdschr. Ent. xxv. pp. 1-6, pis. i. & ii. [== Palinurellus^ Von Martens, 
1878.] 
SynaxeSy g. n. Carapace anteriorly produced between the eyes to a 
flat-pointed rostrum ; breadth of the ventral surface of the perion, form 
of periopods and antennae as in Palinurus, eyes and posterior appendages 
as in Scyllarus. S. hyhridica, sp. n., West Indies ; C. Spence Bate, Ann. 
Ajv N. H. (5) vii. pp. 220-228, pi. xl^ The author proposes a new family, 
Synaxidce, for it, to be placed between the Scyllarina and Palinurina. 
[Very like Palinurellus, Von Martens, 1878, but in this the fifth pair of 
thoracic feet in the female is clawed, as in some Palinurus ; in Bate’s 
genus it is simple.] 
SCYLLARIDA']. 
Scyllarus (Arctus) arctus var. n. paradoxiis, Goree ; Miers, Ann. N. H, 
(5) viii. p. 364. 
Arctus depressus,-sp. n., S. I. Smith, P. U. S. Nat. Mus. iii. p. 429, New 
England, 86 fath. 
Scyllarus martensi, sp. n., Pfeffer, Verb. Ver. Hamb. v. 1880 [1881], 
p. 48, locality not stated. 
Parihacus antarcticus var. n. carinatus, id. 1. c. p. 49, South Sea. 
Pseudibacus gerstceckeri, sp. n., id. l.c. p. 51, Atlantic. 
AstACIDvE. 
C. 0. Harz attributes the sickness of crayfish observed in several parts 
of Germany in recent years to the presence in large number of the 
Eutozoan Distoma cirrigerum and isostomum ; “ Die Krebspest,” Wien, 
1881. Zaddacii remarks, on the contrary, that he has often found in 
former years a large number of these parasites in crayfishes which 
appeared to be healthy ; Zool. Anz. iv. pp. 398 & 426. 
