556 rh-oci:i:in\<;s OF THE \ \ri<>\ \l MUSEUM. vol.38. 



neous and broadly hollowed. First two pairs of logs longer than 

 chelipeds, and like (hem, finely striped longitudinally with red and 

 white. Third and fourth pairs of legs small, third subcheliform, 

 fourth cheliform. Abdomen having an appendage on left side of 

 second, third, fourth, and fifth segments; tail-fan present, more 

 developed on left side. 



Length of carapace about 20 mm.; entire length of extended crab 

 about 85 mm. 



Isla de la Correa, near Capon, January 25, 1908. " Diablicas." The native method 

 df extracting the "diablicas" from the shell is to apply a coal of fire to the apex, until 

 the animal voluntarily abandons his house. They are said to be as palatable as the 

 "camerones " (shrimps). 



Distribution. — From Lower California to Peru. 



DARDANUS SINISTRIPES (Stimpson). 



Plate 49, fig. 2. 

 Pagurus sinistripes Stimpson, Ann. Lye. Xat. Hist. N. Y., vol. 7, 1859, p. 82. 



A hermit crab with carapace elongate, partially calcified anteriorly; 

 rostrum absent ; a tooth at base of antenna. Abdomen soft, spirally 

 coiled. Eye stalks stout; eye scales large and well separated. Anten- 

 na] scale moderate, llagellum long. Chelipeds dissimilar, left the 

 larger; spinous; lingers opening in an obliquely vertical plane; tips 

 corneous, somewhat spooned. Next two legs long and spinous; 

 the second one on the left side is unlike the others, the last two 

 segments much broadened, covered outside with overlapping scales, 

 propodus with a longitudinal ridge, the dactylus with a deep furrow. 

 Last two legs small, third subchelate, fourth chelate. Abdominal 

 appendages similar to those of Clibunar'nis: behind the third one, 

 but more ventral, there is a fleshy spur. 



Length of animal extended, about SO mm.; length of carapace 

 about 20 mm. 



In a species of Xatica. 



Dredged, Bay of Sechura, about half-way between Bayovar and Matacaballa, in 5 

 to 6 fathoms, April It), L907. 



Disfrilmfioh. Kiom Lower California to Peru. 



DARDANUS IMBRICATUS, new species. 

 Plat.- 49, fig. :;. 



Similar to the preceding; eye stalks shorter, eye scales not spread- 

 ing at the extremity; antenna] scale just reaching the cornea. Left 

 cheliped the larger, with wrist sparsely spinous, palm broader than 

 long, outer face covered with numerous fan-shaped, overlapping 

 -.calos which are largest near the immovable finger; scales bordered 

 distally by small chalky-white granules and a fringe of short hair; 



