318 



ME. A. D. MICHAEL ON THE VARIATIONS IN THE 



CttS. 



cc. 



el. 



cm. 



cm.s. 



rt. 

 (k. 

 dg. 



dp. 

 ep. 



epf). 



eph. 

 fc. 



(JU. 



gla. 

 hd. 

 h,j. 



/is. 



la. 

 III. 



md. 

 mdr. 

 mpli. 



inr. 



Capsula spevraatis (Spermatic capsule). See 



page 294. 

 Chitinous cuticle. 

 Cloaca. 



Soft (flexible) cuticle. 

 Camera spermatis (Sperm-chamber). See 



pages 299, 300. 

 Cornu sacculi (the horn of the sacculus). 



See page 301. 

 Connective tissue. 

 Ductus ejaculatorius. 

 Cells considered by Winkler to be dermal 



glands. 

 Dorsal plate. 

 Epistome (dorsal anterior edge of the oral 



tube, or rostrum). 

 Epigynura (external genital plate of tlie 



female) . 

 Epipharynx. 

 Fat-cells. 



Genital aperture of the male. 

 Accessory glands of the male genital system. 

 Hypodermis. 

 Hind gut. 

 Hypostome (ventral anterior portion of the 



oral tube). 

 Leg, the figures 1, 2, 3, 4 indicate the 1st, 



2nd, 3rd, or 4tli pair. 

 Levatores ani muscles. 

 Muscles of the legs ; the figures show the 



pair of legs. 

 Mandibles. 



Retractor muscles of the mandibles. 

 Pharyngeal muscles (page 310). 

 Retractor muscles of the rostrum. 



msjj. 



mv. 

 nm. 



O. 



od. 



w. 



ol. 



ov. 

 ove. 

 uvs. 



p. 



ph. 

 pt. 



R. 



r,i. 



S. 



sa. 



sd. 



sg. 

 sm. 

 sp. 

 spt. 



St. 



sz. 

 T. 

 ta. 

 tp. 



tr. 

 V. 



va. 

 vd. 

 vp. 



Suspensory muscles of the tendinous plat- 

 form (episternite) . 



Malpighian vessels. 



Mandibular nerve. 



Ovary (see note on page 297) . 



Oviduct (see page 298) . 



Oesophagus. 



Lyrate organ (see page 298). 



Ova. 



Ovum with nearly matured embryo. 



Ovum with yolk- segmentation. 



Palpus. 



Pharynx. 



Periircme (stigmatic canal). 



Rostrum. 



Rami sacculi (see page 301 ) . 



Stigma. 



Sacculus foemineus (see page 300). 



Diverticula of the sacculus fcemiueus (see 

 page 302). 



Salivary gland. 



Sperm-mother-cells. 



Stigraal plate. 



Spermatheca. 



Sternal plate. 



Spermatozoa. 



Testis. 



Tubuli aunulati (ringed tubes) . SeepageSOl. 



Tendinous plate for attachment of muscles 

 (episternite) . 



Tracheae. 



^ entriculus. 



Vagina. 



^"asa deferentia. 



Ventral plate. 



In all drawings of whole organs, or of groups of organs, except figures lO, 19, 06, the top of the Plate 

 is the anterior end. This does not ap])ly to sections. 



Plate XXXII. 



Fig. 1. Hceiiiogamasu.s horridus, $, sp. u. (page 312), doisal aspect; x 35. Both mandibles are 

 extruded. 



i^g. 2. The same species, ? , ventral aspect ; x 35. The legs arc cut short to save space. The 

 ventral surface of the oral tube is shown anteriorly ; its front part is the hypostome (maxillary 

 lip), the central fringed ti'iangle being the lacinia of ]\Iegnin, and the two lateral pieces the 



