NO. 1659. AMERICAN SPECIES OF SYNALPHEUS—COUTIERE. 47 



times as long as wide; the basicerite is not more spinous above than 

 in the t^'pical specimens; the carpocerite is h)ngei', surpassing the 

 antennules by the length of the distal article, and, especially, more 

 ovoid (proportion 3.2 or even 3.15) ; the antennal scale is also a little 

 wider than in the types; the small chela, as in the form hahiensi.s, is 

 more swollen than in the types; it has, as its proportions, fingers 1; 

 total length 2.38; height 0.0; there are no diiierences either in the 

 form of the large chela, of the members of the second and third pairs, 

 or in the telson. 



In some specimens, especially among those from St. Thomas, the 

 dactyls of the third pair are very slender, with the superior margin 

 only slightly convex, and the superior hook strotlg. I have not a 

 sufficient series to enable me to judge of the importance of this char- 

 acter. 



The specimens of the form antillensis are all of small size, 15 mm. 

 in length at the most. The eggs are as in the typical specimens. 



Localities: 



South Carolina, 15 miles southeast of Charleston, in fragment of 



madrepore, R. E. Earll. 

 Florida : 



Cape Florida, Edward Palmer. 



Elliotts Key, lat. 26° 33' N., long. 83° 10' W., 28 fathoms. 



Fish Hawk Station No. 7123 (specimen approaching 



hre vicar i? us). 

 Harbor Key. 



Salt Fond Key, Stock Island. 

 Eastern Dry Rock. 



Key West, Union University collection. 

 Dry Tortugas. 



Florida Bay, Edward Palmer. 

 Two miles west of Cape Romano, 15 to 18 feet, Lieut. J. F. 



Moser, U. S. N. 

 Marco, H. Hemphill. 

 Sarasota Bay (specimen with small chela anomalous), 



Union University collection. 

 Anclote (specimen approaching hrevicarpus), Thomas Low. 

 Florida Banks, lat. 28° 56' N., long. 28° 15' W., 12 feet, 



Lieut. J. F. Moser, U. S. N. 

 St. Martins Reef, Lieut. J. F. Moser, U. S. N. 

 Bahamas : 



Andros Island, in sponges, F. Stearns collection. 

 Green Cay, Geographic Society of Baltimore. 

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



(type of form antillensis), 



