MiS.C Bt ANE. A. 
GENERAL. 
Mimicry OF A MUTILILID BY A SPIDER.—On a railway em- 
bankment about two miles south of Cuttack I recently collected a 
curious spider which I mistook at first sight for a female Mutillid. 
It was running about on bare soil in a manner peculiarly like 
that of a Mutillid; the ‘‘ cephalothorax’”’ was reddish and the 
‘‘ abdomen ’”’ black with white spots. The white spots have un- 
fortunately disappeared entirely in spirit, leaving the ‘‘ abdomen”’ 
uniformly black, but even now the rough red ‘‘ cephalothorax ”’ 
blackened over an area in front corresponding to the head 
of a Mutillid, the apparently velvety (in reality somewhat polished 
and finely punctured) black ‘‘abdomen,’’ and the general shape 
of the specimen give it a very Mutilla-like appearance. A few 
minutes before finding this specimen I had obtained a specimen of 
Mutilla pondicherensis, which it resembles closely in form and gene- 
ral colour, differing however in the markings on the abdomen, 
those of the spider consisting in life, to the best of my recollection, 
entirely of white spots without any bands. There were, I believe, 
three (or two ?) transverse rows of these round spots, each row con- 
sisting of one median and two lateral spots, those of the anterior row 
being much larger and more widely separated from each other than 
the rest. The spider and the Mutilla pondicherensis found near it 
are preserved together in spirit, in the Indian Museum collection, 
and as it is impossible for us at present to get the spider identified 
I publish this note as a record of its appearance in life for the bene- 
fit of whoever may ultimately work out the collection. Mr. E. E. 
Green informs me that he has observed a similar phenomenon 
in Ceylon; he has already published a note on it in Spola Zey- 
lanica (vol. iv, 1907, pp. 181-2), and a further note is in pre- 
paration which will be accompanied by a coloured figure. My 
specimens have been submitted to him for examination and he 
tells me that he believes the spider to be the same as his, in 
which case its name is Coenoptichus pulchellus, Simon (= M ycto- 
cryptus mutillarius of a later paper by Karsch). 
F. H. GRAVELY. 
XIPHOSURA. 
CAPTURE OF Limulus ON THE SURFACE.—From time to time, 
as more and more observations on the planktonic fauna of the 
ocean are carried out, the occurrence of unusual constituents are 
reported and it seems worthy of being placed on record that on 
the night of the 19th of December, Ig1I, an adult specimen of 
Limulus muluccanus, Yatreille (= Tachypleus gigas (Miller) '), 
1 Vide Pocock, Ann. Mag. Nat. Hist. (vii), vol. ix, 1902, p. 262. 
