SPECIES OF MATUTA. 
65 
opportunities and more abundant material will bring otlier 
forms to light. In the short notes which follow, no attempt 
has been made to enter into the synonymy of the first 
two species, to ensure accuracy in this respect an appeal 
to the actual specimens described by most of the earlier 
writers would be necessary ; nor do the notes attempt to 
compass all the distinguishing points of M. victrix and 
M. lunaris ; they rather form a mere addendum to what has 
already been written on the subject. The examination of a 
large number of specimens in different stages of growth, has 
convinced me that the two, although closely allied in many 
respects, are to be regarded as distinct species ; indeed, I have 
entirely failed to meet with individuals which coidd in any 
way be regarded as transitional. 
1. Matuta victrix, (Fabr.) Miers. 
Of a large series of individuals examined, the size (length 
of carapace) varied from 13"5 millim. to 40 millim. The 
markings are arranged in the form of minute crowded dots — 
occasionally when confluent forming small rings or semi- 
circles — more abimdant on the anterior half of the carapace. 
With the exception that the markings are much less abund- 
ant, the youngest specimens examined agree in most respects 
with adults. The oval stridulating area contains 4 — 6 lines 
or ridges, the linear 8 — 9. In adult males, the second eleva- 
tion on the outer surface of the hand is always very promi- 
nent and acute ; a well-marked and somewhat curved ridge 
also extends from this spine to the tip of the immobile finger. 
In females and young males, the large spine is less strongly 
developed, but followed by three elevations, the second of 
which likewise takes the form of an acute spine, about half 
the size of the first, and the oblique ridge is otherwise scarcely 
represented. 
In a specimen found by Dr. Thurston at Paumben, 
and which possesses all the more important characters of 
