17 



The rostrum and carapace of the largest specimen are 39 millim. long ; the 

 abdomen fully-extended, is 54 millim. long, the measurements being taken in the 

 mid-dorsal line. 



Common off the Coromandel coast in 68-250 fathoms, also found off the 

 Malabar coast in 124—119 fathoms. 



This species is as elosely as possible related to P. philippinensis Sp. Bate, with specimens of 

 which I have compared it. The only differences between the two species are the following :— in 

 P. philippinensis the rostrum is straighter, there is no angulation of the 4th and 5th abdominal 

 terga on either side of the median carina, there is no tooth (though there is a slight, concavity) 

 near the base of the inner antennular flagellum on its inner-upper border, and though the posterior 

 border of the " thelycum " is curved something like a a> the middle limb of the <■> is long broad and 

 square-cut. 



_, -. , T 4174 420R ,m x- j.1 • \ 4175-4205 4207-4230 706 4-7078 , 



Regd. l\ T os. -rj-: — (Types of the species): — - — : ^ — : g — : 



7368-7380 9120-9130_ 9184-9200_ 3398 . 3401 

 9 " 9 ' 9 " 10 ' 10 " 



Peneus (Metajpeneus) coniger var. andamemensis Wood-Mason. 



r 



iletapeneus philippinensti var. andamanensis, Wood-Mason, Ann. Mag. Xat. Hist., Oct. 1891, p. 2/1. 



This variety differs from P. coniger in the following particulars only : — 



(1) the rostrum, though uptilted, is nearly straight : (2) the subcarinse on 

 either side of the median carina of the 4th and 5th abdominal terga are indis- 

 tinct : (3) the posterior border of the "thelycum" is deeply undermined, it is 

 curved like a <•> reversed, but the middle limb of the « is long and very broad and 

 recurved at its free end: (4) the " andricum " of the 1st abdominal appendages 

 is at least half as long as the carapace (without the rostrum). 



In the largest specimen the rostrum and carapace are 50 millim. long and 

 the extended abdomen is 70 millim. long, measured in the mid-dorsal line. 



Common in the Andaman Sea between 100 and 244 fathoms: also taken 

 once, in large number, off Cape Comorin in 143 fathoms. 



t» j AT 2087-2105 ,m r , , • n 7381-7385 3403. 3531 



Regd. Nos. — ^- (Types of the species): — - : — : - w - 



2. Pencils (Parap'eneus) recfacutus, Sp. Bte. 



Peneus rectacutus, Spence Bate, Challenger Crustacea Macrura, p. 2fi6, pi. xxxvi. fig. 2, J . 



Metapeneus rectacutus, Wood-Mason, Ann. Mag. Nat. Hist., Oct. 1891, p. 274 : Alcock and Anderson, Journ. 

 As. Soc. Bengal, Vol. LXIII. pt. 2, 1894, p. 145. 



I [.LUSTRATIONS OF THE ZOOLOGY OF THE INVESTIGATOR, CRUSTACEA, PLATE XLIX. FlG. 5, <? . 



Glabrous. Rostrum with a very slight double curve, armed dorsally with 

 1 2 or 13 teeth not including a tooth on its gastric carina : in the female its free 

 portion is not quite three-quarters the length of the rest of the carapace 

 measured in the mid-dorsal line and its tip reaches to the far end of the anten- 

 nular peduncle, but in the male its tip falls short of the end of the antennular 

 3 





