REPORT ON THE PYCNOGONIDA. 73 
Station 325. March 2, 1876. Lat. 36° 44’ S., long. 46° 16’ W. Depth of the sea, 
2650 fathoms. Bottom temperature, 70'4° C. Bottom of the sea, grey mud. : 
Observations.—Whether I am right or not in considering the specimens collected at 
Stations 146 and 147 (Colossendeis gracilis, Hoek), Station 298 (Colossendeis media, 
Hoek), and Station 325 (Colossendeis brevipes), as three different species can only be ascer- 
tained by examining a larger number of specimens than are at my disposal. I can only 
point out here the great affinity of these different specimens. However, I may be per- 
mitted to state here, that whenever I speak of a specimen as adult, the statement is 
based on the microscopical examination of transverse sections of the fourth joint of one 
of the legs. 
Colossendeis minuta, n. sp. (Pl. X. figs. 12-14). 
Diagnosis.—Proboscis cylindrical, once and a half the length of the trunk with 
the abdomen. Lateral processes not widely separated. Palpus once and a half as 
long as the proboscis, with the last three joints of about the same length. Legs 
extremely slender, about four and a half times the length of the body. Claw of the leg 
half as long as the second tarsal joint. 
Description.— 
Length of the proboscis, . C . . - . é 4'8 mm. 
Length of the trunk, ; ; ; : F : ; Deli vrese 
Length of the abdomen, . 5 P ‘ 3 ; ; O:5aa 
Total length of the body, . : c 5 : . é Sian; 
Length of the palpus, ; : : : : : c 193) 5. 
Length of the ovigerous leg, : : : : 4 : eS ey 
Length of the leg of the third pair, : : c : ; 35 
Only a single specimen of this species was dredged. It is a small animal with a 
comparatively long proboscis and very slender legs. The body is not extremely slender, 
there being only small intervals between the lateral processes for the insertion of the 
legs. The cephalothoracic segment is small and not distinctly divided into a cephalic 
and a thoracic part. Quite near the front it is furnished with a blunt oculiferous 
tubercle without eyes. 
The proboscis is nearly cylindrical, it is a little swollen in the middle, and the mouth 
is small and triangular. The abdomen is small; it is connected with the last thoracic 
joint by a true articulation. 
The palpus is slender, but not extremely long, being only once and a fourth as long as 
the proboscis. The third joint is only a little longer than the fifth. Ihave given a 
drawing of joints six to ten in fig. 13. The last three joints together are longer than the 
seventh ; they are of about the same length, and comparatively slender. Beginning 
with the fifth, all the joints are furnished with short but strong hairs, which have the 
same shape as those on the legs and ovigerous legs. 
(z0OL. CHALL, EXP,—PART x.—1881.) K 10 
