164i MR. H. CHARLTON BASTIAN'S MONOGRAPH 



tubes two, short, distinct. Head truncate, provided -with 8-10 short setae directed for- 

 wards. Integument with transverse striae scarcely perceptible, -gwoo" apart. 



Pharyngeal cavity cup-shaped, -gwo" deep. (Esophagus ratlier less than Jth of total 

 length. Intestine well covered with brownish fat -particles having a tessellate arrange- 

 ment. Anus 2^" from posterior extremity. Vulva slightly posterior to middle of 

 body. Ocelli, two aggregations of brown pigment, at xchTo" from anterior extremity. 

 Suhcntaneous gland-cells abundant. Anal glands three, large. Excretory ventral gland 

 opening opposite midcUe of oesophagus ; duct rather narrow, uniform in size. 



Male, not seen. 



Sab. Small green sea-weed from tide-pool, Falmouth'. 



** Caudal sucker small, indistinct. 



4. C. PUNCTATUS, n. sp. (Plate XIII. figs. 217, 218.) 

 Male, length -^", breadth YWa"- 



External Characters. — Body powerful, tapering very slightly anteriorly, but gradually 

 to a point posteriorly. Head obtusely rounded, provided with a circlet of 6-8 small 

 spreading setae ; other small setae scattered over posterior part of body. Integument 

 having rows of dots arranged in transverse series Tshoo" apart ; two lateral convex 

 prominences of integument in cervical region nearly opposite base of pharyngeal cavity, 

 33^3 " in diameter. 



Pharyngeal cavity cup-shaped. (Esophagus about xoi^ of total length. Intestine 

 sparsely and irregularly covered with large brownish-coloured fat-particles. Anus yW 

 from posterior extremity. Spicules -gxs" long. Ocelli two, greenish brown, large, 

 y^g" from anterior extremity. Subcutaneous gland-cells wanting. 



Female, not seen. 



Sab. Marine surface-mud from estuary, Falmouth. 



5. C. STRiATTJS, n. sp. (Plate XIII. figs. 219, 220.) 

 Male, length ^", breadth -^". 



External Characters. — Body tapering slightly anteriorly, but gradually to a point 

 posteriorly. Head obtusely rounded, provided with two small papillae, upjier and lower, 

 and a circlet of about six seta? directed forwards. Integument with very distinct trans- 

 verse striae ttooo" apart ; a few scattered setae over anterior part of body, but numerous 

 others posteriorly behind anal cleft. 



Pharyngeal cavity cup-shaped, awo" deep. (Esophagus ^^th. of total length. J«-' 

 testine well covered with hepatic particles having a tessellate arrangement. Anus 

 Y^b" from posterior extremity. Spicules thick, strong, slightly curved, too" long : 

 accessory pieces four ; two median lanceolate, thin ; two external stout, quadrilateral. 

 Ocelli wanting. Subcutaneous gland-cells plentiful. 



Female, not seen. * 



Sab. Marine surface-mud from estuary, Falmouth. 



^ Or else t'roni marine surface-mud of estuary. I am not quite certain which, as the habitat was unfortunately not 

 entered at the time when the species was discovered and described. 



