454 MARINE BIOLOGY OF THE SUDANESE RED SEA. 
2 210. | 2 209. | 2207. |9 208. |O211.) S212. |g 208.) 5-208 ere J 204. 
Oi IER een Flas ale 0) |) Gal CO ee 8) Gijon Gri 850 | 9:0 9:25 
els reat ene ore ct click 69" | 8a 1) 9-75 110-0: | 10575) 9:75)" 1030 7) 12-7) A Oe alesis 
Fronto-orbital b. ...... HO) CO Cris | O05 | 725) G7 | Cre 85 Se | BO) 
MEtrontallbsaeprt cere eer 20 | 30 | d4 3) 84 | S754 8:20) 8:25) 4:20) ASD ie des 
Major diameter orbit 0 1-2 15 15 1-75 Hea) 15) 2:0 2:0 2:0 
@hN (laroen) eee ee 75 | 9°76 | 10°75 | 10°75 | 115 | 114 17-0 17-75 
NChaa (smaller) eye. 75 9°75 | 10°75 | 10°75 | 1175 11:0 16:25 : 
I : He tops | 
res ae 40 | 51 | &75| 575|.65 | 61 | 9-5 10-0 
yee lnerels OME alge | aes | | GR || Be 9-0 a 
(simmer) 550000008 
Propus h. (larger) 5 olf ED 19 2:0 2:0 23 2°8 4:25 4:25 
| Propus h. (smaller) ....) 15 1) 20 2-0 23 2°25 a 3°25 a ~: 
Fronto-orb. b.—C.b..... ie) “i1 69 67 67 8) || B70 ‘66 62 65 
Frontal b.+C.b. ...... °36 | 35 | °35 | °34 315) yi. ay 35 “30 39 
Ch.l. (larger) +C.b. ....} 1:50} 1°60 | 154} 1:54 | 1:53 1:69 2:00 1:92 
Number of side-lobes, | | 
counting from behind, -| 3 3 3 4 onset) iae-2 0 Ht 
which are spiniform of 
Condition of the two 
prominences on inner ;|Spines Spines|Spines |Spines Spines t pant Teeth |, eee ak ee 
angle of wrist ..,... | ubercles ubercles tubercles 
| Larger cheliped ...... Left |Right| Left | Left | Right] Left | Left | Left ae Left 
The new species has affinities with several other species of Chlorodopsis. 
From C. areolata it can be distinguished (a) by the type of granulation of 
the carapace and more particularly of the anterior half, for C. areolata has a 
regular covering of larger pearly granules which are rounded and of similar 
size in anterior and posterior regions alike ; (4) by the absence of the coat of 
very short fur from dorsal and ventral surfaces of the carapace and from the 
exposed surface of the external maxillipedes, chelipeds, and walking-legs ; 
(c) by the scattered arrangement of the less numerous long sete fringing the 
walking-legs, not hiding the dorsal armature of the latter—this contrasts 
with the dense close fringe in C. areolata ; (d) by a few differences in the 
areolation, thus the areolee 2 F have a much more irregular appearance than 
in C. areolata, where they are rounded and evenly granular ; the anterior 
narrow portion of 3 M extends forward between the posterior borders of the 
pair 2F; 3M has less tendency to be tripartite; (e) by the wider orbital 
hiatus and less extent to which it is filled by the basal joint of the antenna ; 
(f)} by the armature of the dorsal margin of the three distal joints of the 
walking-legs, which makes some approach to that of C. spinipes—that of 
C.areolata is hidden by the fringe of setze, and when the latter is removed is 
found to be reduced to a granulation in carpopodite and propodite, and 
entirely absent from dorsal edge of dactylopodite. 
The new species may be distinguished from C. spinepes and C. wood-masont 
(a) by the continuation of the areolation over the posterior portion of the 
