There are 21 specimens in the collection, registered as follows :- 



QIOIOO 



-— - Oil Pulicat, 133 fathoms. 



^-^ G. of Manar. 180-217 fathoms. 



2080—86 



— . — Types. Andaman Sea, N.E. of North I., 185 fathoms. 



2596-2604. 



i» " Investigator." 



Andaman Sea, N. of North I., 370-419 fathoms. | 



3. Parapeneus longipes, Alcock. Plate VI, fig. 18, 18a, b. 



Parapeneus longipes, Alcock, Aim. Mag. Nat. Hist. (7) XVI. 1905, p. .52.5. 



Resembles P. fissurus, from which it is distinguished by the following 

 characters : — 



The rostrum in both sexes barely reaches the end of the first joint of the 

 antennular peduncle. There is no trace of a brancMostegal spine at the antero- 

 inferior angle of the carapace. 



The inner (longer) antennular flagellum is about as long as its peduncle in 

 the female, and a little longer in the male. 



The 3rd or external maxillipeds reach the tip of the antennal scale, and 

 the last pair of thoracic legs reach a dactylus-length beyond them. 



The andricum is formed on the same plan, but ends in a pair of (median) 

 ragged petaloid lobes, and a pair of (lateral) stiff, curved, hornlike filaments. 



The thelycum consists of a broad, longitudinally-grooved plate occupying 

 all the space between the 6th pair of legs, articulating with a horse-shoe-shaped, 

 or concave semicircular plate lying between the ith pair of legs. 



The female attains a length of 3J inches. 



The collection now numbers 121 specimens, registered as follows: — 



1678-79 



Types. Off Ganjam coast, 35 fathoms. 



Ganjam and Vizagapatam, 7-.S5 fathoms. 



7 

 4055-59 4232-.33 7112-7200 



9 9 9 



4702 



— ^ Mangalore (Malabar coast) 26-31 fathoms, r 



7925 

 9 



-"Investigator." 



Sandheads, R. Hooghly. Bengal Pilot Service. 



4. Parapeneus rectacutus, Spence Bate. Plate VI, fig. 19, 19a, b. 



Penxui! rectacutus, Spence Bate, Challenger Macrnra, p. 266, pi. xxsvi, liir. 2, 188S. iletapeiicus rectacutus, 

 Wood Mason, Ann. Mag. Nat. Hist. (6) VIII, 1891, p. 274. Parapeneus rectacutus. 111. Zool. Inyestigator, Crust, 

 pi. xlix. fig 5: Alcock, Cat. Indian Deep Sea Crust., 1901, p. 17. 



Differs from P. fissurus in the following particulars : — 



The rostrum in the female reaches the tip of the antennular peduncles, and 

 6 



