104 BULLETIN 97, UNITED STATES NATIONAL MUSEUM. 



FABIA LOWEI (Kathbim). 



Pljite 24, figs. 2 und 4. 



Fahia subquadrata Lockington, Proc. California Acad. Sci., vol. 7, ISTO 

 (1S77), p. 155 [11], (part; specimen from San Diego). — Holmes, 

 Occas. Papers California Acad. Sci., vol. 7, 1900, p. 87 (part; speci- 

 men from San Pedro in Tapes, described). 



RaphonoUts lowci Rathbun, Amer. Xiit., vol. 34, 1900, p. 590 (type-locality, 

 San Pedro Bay, California, in sij)hon of Pholas pacifica; holotype fe- 

 male, Cat. No. 23437, U.S.N.M.) : Harriman Alaska Exped., vol, 10, 

 1904, p. 186, text-fig. 93. 



Diagnosis. — Front smooth and naked, without sulcus. Last seg- 

 ment of maxilliped does not reach end of joenult segment. Palm not 

 widening distally. A single row of hair on lower surface of palm. 



DesGiiption of female. — Carapace a little wider than in sub- 

 quadrata^ which it strongly resembles. Front without trace of shal- 

 low, transverse sulcus and without pubescence. Last segment of outer 

 maxilliped does not reach end of penult segment. The palm does not 



widen distally, its margins 

 being subparallel or a little 

 convex; only one line of 

 hair on lower surface, which 

 is continued to end of finger. 

 Fingers less arched and less 

 gaping than in subquadrata. 

 Posterior margin of pro- 

 podus of first leg convex, of last leg slightly concave. 



Color, — In life, whitish: carapace and abdomen largely covered 

 with orange (Holmes). 



Habitat. — Commensal in bivalve mollusks, namely, Pholas, Pachy- 

 desma, Modlola, and TajJes—Paphia. 



Measurements. — Female (23437) length of carapace 10, width of 

 same 12.5 mm. 



Range. — California, from San Pedro to San Diego. 

 Material examined. — 



San Pedro Bay; in siphon of Pholas pacifica; H. N. Lowe; 2 

 females ovig. (1 holotype) (23437). 



San Pedro ; in siphons of mussel, Modiola modiolus; H. N. Ix)we : 

 29 females (14 ovig.) (29945). 



San Pedro; H. N. Lowe; 1 female ovig. (32978). 

 Long Beach, California; H. N. Lowe; 15 females (13 ovig.) 

 (49221). 



Alamitos Bay ; in mantle cavity of Pholas calif omica; Venice Mar. 

 Biol. Sta.; 1 female (45583). 



San Clemente Island: H, N. Lowe; 1 female (29944). 



Fig. 55. — Fabia lowki, female (U3437) 



DOGNATH OF OUTER MAXTLT.IPEB, X 10 

 CHELA, X 4. 



a, En- 



h, LEFT 



