OF CRUSTACEA FROM SINGAPORE. 
113 
Stomatopoda. 
Squilla nepa , Fabr. 
Gonodactylus chiragra, Fabr. 
Notes on Certain Species. 
1. ScnizoPHRTS aspeea. — One specimen is the var. spinifrons 
of A. M. -Edwards. 
2. Pachygrapsfs transversfs, Gibbes, appears to be merely 
a variety of Metopograpsus messor. 
3. Porcellana (? Petroltsthes) corallicola, Hasw., var. — 
The single small specimen differs so much from the typical 
form in the sculpturing of the wrist and hand of the larger cheli- 
pede, that it is a question whether it ought to be referred to this 
species. The wrist has two rounded longitudinal ridges or 
cariuse. The upper surface of the hand is divided longitudinally 
into two unequal parts by a similar ridge, the space on each 
side of which is covered with tubercles. The fingers have a 
similar ridge on the outer surface. In the specimen in the 
British Museum from Queensland the central line of tubercles 
on the baud shows a tendency to fuse into a carina. 
4. Diogenes ayarfs, Heller, var. — I have some hesitation 
in referring the single specimen in the collection to this species, 
with which, however, it agrees except in having the margin of 
the carapace armed with three small teeth immediately beneath 
the upper external angle. The hand of the large chelipede is 
obsoletely costate externally, but is more robust than in Heller’s 
figure, resembling rather in this respect D. granulatus , Miers 
(Ann. & Mag. Nat. Hist. ser. 5, vol. v. p. 373, note). (Plate 
Yin. figs. 6, 7.) 
In addition to the Podophthalmia there were a few Isopoda 
not yet examined, and a new Amphipod, Byblis kallarthrusy 
Stebbing, described by the Rev. T. B. R. Stebbing, in Proc.Zool. 
Soc. Jan. 19, 1886. 
Description of New Species. 
Maia Miersii, n. sp. (Plate YI. figs. 1-3.) 
Carapax ovalis, granulatus. Margo supraorbitalis spinis 2 
longis ; margo anterolateralis spinis 5, 2 primis minoribus. 
(Coll. Brit. Mus.) 
