PLATE LXXXVIII. 



[Part IX.— November 1899.] 



GiRAsiA HOOKERi, Gray, var. shillongensis, G.-A. Khasi Hills. 



Fig. 1. Sperraatophore ( = fig. 8, pi. xxvii. P. Z. S. 1880), x 4. 



1 a. Ditto, basal fronds (=fig. 8a, pi. xxvii. P. Z. S. 1880), x 20. 

 1 b. Ditto, ditto ( = fig. 8 b, pi. xxvii. P. Z. S. 1880), x 50. 



1 c. Underside of foot, showing the segmentation of the mass (= fig. 5, pi. xxvii. 



P. Z. S. 1880). 



GiRASiA HOOKERI, Gray. Klia.si Hills. 



Fig. 2. Side view of animal showing the main retractor muscles and site of their several 

 attachments, nat. size. 



2 a. Side view, showing same, nat. size. 



2 b. View from beneath of upper wall of the body-cavity, showing the several muscle 



attachments, nat. size. 

 2 c. Ditto, showing position of heart, pulmonary cavity, &c., nat. size. >n, edge of 



mantle. 

 2 d. Sole of foot, lower floor of body-cavity, with muscle attachment of buccal mass, 



Up, nat. size. 

 2 e. The visceral sac, shell removed, viewed from above, X 2"5. 

 2/. The visceral cavity from above, showing convolutions of the intestine and position 



of adjacent organs, x 2-5. 

 2 (J. The stomach with salivary glands, nat. size. 

 2 h. The auterior end of the dart, x 4. 

 2 i. Posterior bend of male organ with retractor-muscle attachment, X 2. 



J}, Buccal mass ; Bcdtn, central dorsal muscle of buccal mass ; Brdm, right dorsal muscle 

 of same ; Bldm, left ditto ; B + h:, left eye-tentacle united with that of buccal mass ; 

 Y^p, pedal and buccal mass; D, amatorial organ; hd, hermaphrodite-duct; Al.gld, 

 albumen-gland; t, intestine; «f, anus ; m, mouth; Sal.g Id, salivarj gland; Pul.cav, 

 pulmonary cavity; r, renal organ; P-t-rE, right eye-tentacle united with that of the 

 male organ ; /, liver. 



