62 



PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxxvi. 



The height of the telson is 1.47 times the -width of the base and 

 4.7 times the posterior margin; it is consequently more elongated 

 than in ^S'. goodei; the spines of its upper surface are weak, and the 

 inner spines of the posterior border are more than twice as long as 



^ K 



Fig. 35. — Synalpheus sanctithom.e. a, frontal and antennal region ; K, large 



CHELA, MALE AND FEMALE ; il''^ CARPUS AND MEKOPODITE OF LARGE CHELIPED, MALE AND 

 FEMALE ; k', SMALL CHELIPED OF FIRST PAIR, MALE AND FEMALE ; ?, FOOT OF SECOND 

 PAIR ; m, FOOT OF THIRD PAIR ; t, TELSON ; U, UROPOD. 



the outer; the border of the outer uropod has not more than 2 fixed 

 teeth, without an intermediate sutural spine. 



The eggs give rise to zoese (0.8 mm. in greatest diameter). 



Localities : 



St. Thomas, 20 to 23 fathoms. Fish Hcnvk Station No. 6079, 1 



male and 1 female of very small size (9 mm.), types. 

 St. Thomas, 20 fathoms. Fish Hawk Station No. G080, 1 female. 



Type.— Cat No. 24782, U.S.N.M. 



SYNALPHEUS GRAMPUSI, new species. 



The three frontal teeth are equal in length, but the rostrum, with 

 parallel margins, is scarcely one-fourth of the width of the lateral 

 teeth, which are widely rounded at their extremity; the intervals be- 

 tween the rostrum and the lateral teeth have parallel borders, and are 

 therefore U-shaped; the rostrum is placed at a lower level, and is 

 continued backward by a short and narrow crest. 



