560 



BULLETIN 54, UNITED STATES NATIONAL MUSEUM. 



The incubatory lamelles are very wide apart, SUIT 

 open space, the marsupium, on the ventral side of 



There are five pairs of 

 double-branched pleopoda, 

 lamellar in shape and placed 

 on either side of the median 

 line. Uropoda absent. 

 Color, white. 

 Male, oblong oval. Eyes 

 wanting. Thoracic s e g - 

 ments well defined. Ab- 

 dominal segments imper- 

 fectly defined, except along 

 the lateral margins. Color 

 white. 



Type locality. Mangroves, Rio Parahyba do 

 Norte, Brazil, in the branchial cavity of Crangon 

 Cat. No. 23759, U.S.N.M. 



ounding a broad 

 the body. 



FIG. 612. PROBOPYRUS ALPHEI 

 DORSAL VIEW OF FEMALE. 



FIG. 613. PROBOPYRUS 

 ALPHEI. MALE. 



hetwochxlis Say. 



PROBOPYRUS LATREUTICOLA (Gissler). 



Bopyroides latreuticola GISSLER, American Naturalist, XVI, 1882, pp. 591^594. 

 Bopyrus latreutes SPENCE BATE, Challenger Report, XXIV, 1888, p. 584. 

 ' Bopyriha latreuticola BONNIER, Travanx de la Station Zool. de Wimereux, VIII, 



1900, pp. 370-373. 

 Bopyroides latreuticola RICHARDSON, Trans. Conn. Acad. Sciences, XI, 1902, 



p. 299; Proc. U. S. Nat. Mus., XXVII, 1904, pp. 65-66. 



Localities. Beaufort, North Carolina, on Latreutes ensiferus (Milne 

 Edwards); latitude 28 17' 7" north, longitude 66 17' 37" west; lati- 

 tude 31 15' 42" north, longitude 67 39' 

 10" west on L. ensiferus; latitude 31 16' 

 north, longitude 71 50' west on L. ensi- 

 ferus; latitude 27 38' north, longitude 

 76 23' 24" west on Z. ensiferus; Baha- 

 mas, between Nassau and Andros on L. 

 ensiferus; off South Carolina, on Z. ensi- 

 ferus; Bermudas, on Z. ensiferus. 



Body of female ovate, asymmetrical, 

 one and a half times longer than broad, 

 2 mm.: 3 mm. 



Head deeply set in first thoracic segment; 

 with a frontal border, the anterior margin 

 of which is widely rounded, and the lateral angles of which project as 

 triangular lobes at the sides of the head. Eyes distinct and situated 

 just below the frontal border. 



On one side of the body the segments of the thorax have the lateral 



a b 



FIG. 614. PROBOPYRUS LATREUTICOLA. 

 a, MALE, x 51i. b, FEMALE, x 18?. 



