288 RATHBUN 



PARAPEN^US KISHINOUYEI sp. nov. 

 (PI. XII, figs. 13-15.) 



Carapace covered with a very fine pubescence easily I'ubbed off and 

 arising from crowded irregular pits. A median gastric spine at about 

 the anterior third ; median carina scarcely continued behind this spine. 

 Upper margin of rostrum arched, the distance of the teeth from the 

 lateral rib diminishing from the proximal to the distal end ; teeth 7 to 

 9, continued to the tip ; lateral rib also curved ; lower margin entire 

 and ascending, nearly straight. Rostrum reaching just beyond the end 

 of the first antennular segment. The second antennular segment is 

 twice the length of the third. 



The basis and ischium of the first pair of pereiopoda are each armed 

 with a spine. A pair of spines on the sternum between the second 

 pereiopoda. The surface of the abdomen is pubescent and punctate 

 like the carapace though less completely so. The posterior two thirds 

 of the third segment is carinated, also the whole length of the fourth, 

 fifth and sixth segments ; the sixth segment is twice as long as the fifth ; 

 the lateral margins of the telson have each three spines increasing in 

 size posteriorly; near the posterior pair is a pair of shorter fixed spines. 



The petasma is not bilaterally symmetrical ; its left half is the longer 

 and its distal portion is ovate and at the anterior end quite narrow. 

 The central plate of the thelycum is semicircular ; the lateral plates 

 are broad and fused. 



Dimensions. — The length of the largest specimen is about 33 mm. 



Locality. — The types were taken at Tagus Cove, on the reef north 

 of Tagus Hill, Albemarle Island, March 16; 4 males, 3 females (U. 

 S. Nat. Museum Cat. No. 34835). 2 males and 2 females were also 

 taken in 2 fathoms in Tagus Cove. 



Allied to P. veluiinus (Dana.? Bate). In that species the rostrum 

 has fewer teeth and is less arched, the second abdominal segment is 

 carinated, the petasma and thelycum are different. 



The species is dedicated to Dr. Kishinouye who has recently mono- 

 graphed the Penseids of Japan. 



Family ALPHEID^. 

 Alpheus malleator Dana. 



Alpheus malleator Dana, Crust. U. S. Expl. Exped., i, 557, 1852 ; pi. xxxi, 



f. 9. 1855. 

 Alpheus pugilator A. Milne Edwards, Bull. Soc. Philom., Fans (7), 11, 229, 



1878. 



Tagus Cove, Albemarle Island, on reef north of Tagus Hill, March 

 16; one small specimen 12.5 mm. long. 



