330 30 



Subfamily Plagusiinæ. 

 Plagusia depressa tuberculata Lamarck. 



Plagusia depressa var. squamosa Ai.cock, LXIX, 437, 1900. 

 Koh Kahdat, from driftwood; I. 11; 1 cj*. 



Family Pinnotheridae. 

 Subfamily Pinnotherinæ. 

 Pinnotheres affinis Burger. 



Pinnotheres affinis Birger, Zool. Jahrb., Syst., VIII, 305, pi. IX, fig. 2, pi. X, figs. 2 and 34, 1895. 



18 miles west of Koh Chang, about 20 fathoms, mud; Î. 31; one immature 



male. I have compared this specimen with one of Burger's adult female cotypes 



from Bohol; the male is very small, only 17 mm. long and 18 mm. wide, width 



of front 6 mm. The front is considerably wider in males than in females, as shown 



by Bürger. 



Pinnotheres glaberrimus Burger. 



Pinnotheres glaberrimus Birgkb, Zool. Jahrb., Syst., VIII, 366, pi. IX, fig. 3, pi. X, fig. 3, 1895. 



Koh Kam, 5 fath., gravel; II. 6; one male very small, only 1'3 mm. in each 



dimension. 



Pinnotheres cardii Burger. 



Plate 11, fig. 8. 

 Pinnotheres cardii Bürger, Zool. Jahrb., Syst., VIII, 367, pi. IX, figs. 4 and 5, pi. X, fig. 4, 1895. 



Between Koh Chuen and Koh Chang, 15 fath., mud; III. 3; 1$ ovigerous. In 

 this specimen, 58 mm. wide, the palms are a little longer and narrower than 

 represented in Burger's figure, increasing slightly but regularly in width to the 

 distal end. The legs on the left side are normal, but on the right side the second 

 leg is abnormally developed, half again as long as on the left side. 



Pinnotheres gracilis Burger. 



Pinnotheres gracilis Bürger, Zool. Jahrb., Syst., VIII, 368, pi. IX, fig. 6, pi. X, fig. 6, 1895. 



Koh Kahdat, 5-8 fath., sandy mud, II. 16 and III. 4; 1? ovig. 



This specimen is smaller than Burger's type and larger specimen; it measures 

 2"7 mm. long, and 3'5 mm. wide. The carapace is very thin and transparent so 

 that the eggs are easily seen through it. The orbits are wholly ventral in posi- 

 tion, tbeir anterior margin a little in advance of the antennular cavities; the eyes 

 have a small black pigment spot on the inner side. The chela increases in width 

 from the wrist to the base of the immovable finger. Fingers very thick, each 

 having a low white tooth at the base, that on the dactylus shutting within that on 

 the pollex; when closed there is a very narrow slit between fingers, tips crossing. 

 The relative lengths of the legs are as described by Bürger, but the dactyli appear a 

 little longer in proportion to their propodi than represented in his figure; neither 

 do I detect any lines on the anterior half of the carapace. 



