SCOLECIDA. 
611 
Diij.) in the right ventricle, right auricle, and commencement of the pulmo- 
nary artery of a pug dog which dropped down dead after a hearty meal at 
Saint Denis, Reunion. Robin’s J ourn. de I’Anat. et de la Physiol. 18G6, no. 5, 
p. 567. 
Ascaris (Atractis) dactyluris^ from Testudo grceca^ is described by Maca- 
lister (1. <?.). 
Rhahditis terricola, Duj. Perez gives a very lengthened account of the 
anatomy, development, and life-history of this worm, which is found abun- 
dantly in crushed ova of Limax agrestis and L. ho7'tensis. The Ascaroides 
litnacis (Barthel^my) is without doubt this same species j so that this genus 
must be suppressed. 
Samuelson notices the first occurrence of Trichmm near Kbnigsberg. 
Schrift. phys.-bkon. Gesellsch. zu Kbnigsberg. Jahrg. vi. Sitsungsber. p. 6. 
Pagenstecher (Die Trichinen &c.) has published an elaborate historical 
account of our knowledge of Ti'ichina spit'alis, followed by a description of a 
great number of experiments made at Heidelberg by administering trichinized 
flesh to various animals, especially rabbits, and by a zoological description of 
the animal in its various states, and of its natural history. Pagenstecher 
regards this parasite as forming a distinct family of Nematode worms, which 
he characterizes as follows : — 
Familia TRiCHiNiDiB. 
Collum capillare corpore angustius, caput inerme, os simplex ; anus termi- 
nalis, extremitas caudalis rotuudato-obtusa ; maris apertura genitalis termi- 
nalis, feminae ad collum ; spicula nulla. 
He seems to regard this family as forming the group by which the Nema^ 
toidea strongyloidea most nearly approach the Gordiacea. The characters of 
of the T^'ichincB in their various stages of growth are represented in the two 
plates accompanying the work. 
Other notices on Trichincc have been published by Erb (their occurrence 
in rats, which is also mentioned by Pagenstecher), Ilensen, Pagenstecher 
(experiments with remedies), and Seidel. These are referred to in the list of 
memoirs (pp. 602 & 603) and need not be further noticed here. 
New genera : — 
Schneider (/. c.) describes the following new genera, the diagnoses of which 
are sufficiently given for the purpose of this Itecord in the analytical list of 
ail the genera of the Nematoidca given above ; — Cei'atos^rh'ct (p. 108), Nema- 
toxys (p. Ill) for Oxyuris ornata (Duj.) and Ascaris commutaia (R.) from 
liana temporaria, Oxysoma (p. 114), Lahiduris (p. 122) for Ascaris gulosa 
(R.), Spiroxys (p. 125), Pelodera (p. 148) = (Duj. ex parte). 
Neiv species : — 
Anguillula pristina and A. capillacca^ Menge, I, c. p. 7, figs. 11-15 and 16- 
18, found in numbers in amber. 
lialanoglossus tninutus, Kowalewslcy, 1. c. p. 15, fig. 1 /, Naples, not far 
from the Strada Nuova di Posilippo, among the roots of plants growing on 
the borders of the sea. 
Schneider (7 c.) describes the following new species : — 
Asca?'is rubicunda (p. 42, Taf. 1. fig. 8) from Python molurus ; A. radiosa 
(p. 42, Taf. 1. fig. 9) from* Echidna rhinocerotis ; A. quadrangulai'is (p. 43, 
2 R 2 
