1921 1 Schmitt: The Marine Decapod Crustacea of California 101 



granulations. Antennal scale with spine noticeably exceeding blade and separated 

 from it by a deep incision for about the distal fourth of its length. First two 

 abdominal segments obsolescently carinate dorsally, third earinate on anterior half, 

 fourth on anterior two-thirds, and fifth throughout its length; sixth abdominal 

 segment with a median sulcus formed by two nearly parallel carinae, diverging 

 somewhat anteriorly; these carina are paralleled on each side by another carina 

 which anteriorly diverges even more from the median line ; abdominal segments 

 one and two are each armed laterally with a single spine, while the third segment 

 has a subacute downward projection near the anterolateral angle ; in the male 

 this projection is obsolescent or entirely lacking; fourth and fifth segments with 

 posterolateral angle acute. Telson exceeding inner branch of uropods, which in 

 turn exceeds the outer branch; tip acute and armed in the male with three pairs 

 of lateral spinules and in the female with four. 



Ventrally the thoracic sternum of the male has an anteriorly directed spine 

 between the bases of the second pair of legs, and a thin, laterally compressed keel 

 between the bases of the following three pairs of legs. In the female there is a 

 low, blunt tubercle between the bases of the second pair of legs. The first, second, 

 and third abdominal segments of the male are armed below with a prominent, 

 acute median spine; the fourth has a less prominent blunt spine; and the fifth 

 has only a low tubercle ; the sixth segment is ventrally unarmed. The abdomen 

 of the female ventrally unarmed except for a small obsolescent tubercle between 

 the pleopods of fifth segment. 



Dimensions. — Type male, holotype (Cat. No. 52714, IT. S. 1ST. M.) : length from 

 tip of rostrum to end of telson 35 mm., length of carapace and rostrum 11 mm., 

 of hand about 6 mm. ; of female, total length 44 mm., of carapace and rostrum 

 13 mm., of hand 7 mm. 



Type Locality. — Off Point Loma, California, 525 to 541 fathoms, 1 male 

 ("Albatross" station 4334). 



Distribution. — The only other specimen of this species, a female, was also 

 taken off Point Loma, 628 to 640 fathoms ("Albatross" station 4353). 



Remarks. — In this species the tip of the rostral spine reaches only about to 

 the middle of the ocular peduncle; in C. spinosissima it reaches to the cornea 

 but does not exceed it; and in C. spinirostris (Eathbun, 1904a, p. 131), another 

 closely related species, the tip of the rostral spine exceeds the eyes. 



Crago munitella (Walker) 



Crangon munitellus Walker, Trans. Liverpool Biol. Soc, 12, 275; pi. 16, 



fig. 1, 1898; Holmes, Occas. Papers Calif. Acad. Sci., 7, 176, 1900. 

 Crangon munitella Eathbun, H. A. E., 10, 132, 1904. 

 Crago munitella Hilton, Jour. Ent. Zool., Pomona Coll., 10, 54, 1918. 



Fig. 70. Crago munitella, 5, dorsal view of carapace and abdomen, X 1% 

 (adapted from Walker). 



Characters. — Second lateral carina of the carapace (counting from the middle) 

 armed with a spine a little behind the superior lateral spine. First to fourth 

 abdominal segments smooth. Hands two and one-half times as long as wide, 

 swollen, the anterior margin more longitudinal than transverse. 



