66 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



VOL. XXXVI. 



The external margin of the uropod bears only two short teeth, with 

 one long movable spine nearer the sutural tooth. 



The larvae are zoeae. 



The type comes from Annobon, off the west coast of Africa (Count 

 Parfaite, Paris Museum). 



Named for the collector. 



Synalpheus Itvvhnanus (Heller) of the Mediterranean is quite dis- 

 tinct from both of these species ; the frontal margin bears three equal 

 teeth, the rostrum being about two-thirds as wide as the lateral teeth, 

 and in height four times its median width, or a little less. 



Fi(i. 38. — Synalphkus l.iovimaxus. a, frontal and antknnal region, :\iale and fe- 

 male; a', FRONTAL AND ANTENNAL ISEGION, MALE WITH RUDIMENTARY SCALE; d" , 

 FRONTAL AND ANTENNAL REGION, MALE INTERMEDIATE; K, LARGE CHELIPED ; A"". SMALL 

 CHELIPBD OF FIRST PAIR; /, FOOT (JF SECOND PAIR; m , FOOT OF THIRD PAIR; //(', DACTYL 

 OF THIRD PAIR ; t, TELSON ; M, UROPOD. 



The articles of the antennule are to one another as l.oT, 1.07, 1 ; the 

 stylocerite is narrow and equals the basal article. 



The superior angle of the basicerite is obtuse, its lateral spine reach- 

 ing to at least the middle of the basal antennular article ; the scapho- 

 cerite is not provided Avith a scale in the females, where its place is 

 only indicated by a slight prominence of the inner margin of the 

 si^ine ; in the males the scale is of variable length, from a very slight 



