NEMATODA (and nematorrhyncha) . Verm. 19 
are given of parts of almost all the species. The following record 
embraces only the new genera and species; first, the terrestrial (28); — 
1. Ironidce. Ironus tenuicaudatus, M., p. 7.* 
2. Dorylccmidoi. Dorylcemus regius, p. 15, pi. iii. fig. 2 ; robustus, 
p. 17, pi. iii. fig. 3; elongatm, p. 19, pi. iii. fig. 4; rhopalocercus, p. 22, 
pi. iv. fig. 6 ; borhorophilus, p. 25, pis. iv. & v. fig. 8 ; gracilis, p. 29, pi. v. 
fig. 9 ; similis, p. 30, pi. v. fig. 10 ; brigdammensis, p. 35, pi. vi. figs. 13 
& 14. 
3. Tylolmmidm. Tylopharynx, g. n. Pharynx with three more or 
less curved chitinous rods, each with a knob posteriorly ; oesophagus as 
in Tylenchus, two bulbs ; skin annulate ; genital organs bipartite ; no 
bursa in the males. T. striata, p. 40, pi. vi. fig. 15. 
Tylencholaimus [^lcemus\ g. n. Agrees with Dorylcemus in the struc- 
ture of the oesophagus and ovarium, and with Tylenchus in having a (not 
very solid) oral spine, and in the shape of the genital organs. CEso- 
phagus without bulbs, but with a thickened chitinous tube in its posterior 
portion (male unknown). T. minimus, p. 43, pi. vi. fig. 16 ; zelandicus, 
p. 45, pi. vi. fig. 17. 
Tylenchus robustus, p. 47, pi. vi. fig. 18 ; exiguus, p. 54, pi. vii. fig. 21 ; 
elegans, p. 56, pi. vii. fig. 23. 
Aphelenchus modestus, p. 59, pi. vii. fig. 24. 
4. Odontosphceridce. Teratoccphalus, g. n. Body slender, especially 
behind, skin distinctly ringed, without bristles or papillae ; head of a 
peculiar shape, due to an excessive evolution of papillae ; mouth-cavity 
small ; oesophagus with a bulb containing a dental apparatus ; genital 
organs single, asymmetrical ; spicula much curved, without any accessory 
part ; no caudal papillae and no caudal gland. T. terrestris (Btsl.). 
Cephalobus oxyuroides, p. 63, pi. vii. fig. 26 ; bursifer, p. 65, pi. viii.^ 
fig. 28. 
Rhabditis butschlii, p. 77, pi. ix. fig. 36 ; gracilicauda, p. 79, pi. ix. 
fig. 37. 
Diplogaster coprophages, p. 82, pi. x. fig. 38. Anguillula and Plectus 
also belong to this group. 
5. Ptychopharyngidw. Spilophora geophila, p. 85, pi. x. fig. 40. 
Chromadora leuckarti, p. 88, pi. x. fig. 41. Cyatholmmus is also to 
be placed here. 
6. Tripylidm. Spira, Tripyla, Leptolaimusl-lcemus'],g. n. Skin ringed, 
with a few bristles and a lateral membrane ; pharynx an elongate narrow 
channel, without any chitinous investment; two circular lateral organs; 
head without lips or papillae ; oesophagus swelling slightly behind ; a 
caudal gland with a narrow duct ; two spicula with a single curved acces- 
sory piece ; a row of pre-anal papillae, the hindmost tubiform ; uterus 
bipartite ; vulva in the middle of body. L. papilliger, p. 92, pis. x. & xi. 
fig. 42. 
7. Monhysteridce. Bastiania, g. n. Body very slender, skin trans- 
versely rugose ; bristles on the head ; lateral circles and caudal gland 
present ; genital organs single. Differs from Monhystera through the 
* The pagination is that of the separately printed copies.— C. F. L. 
