402 
AV. X. F. AVOODLAXD. 
with the anatomy in general of this aberrant Crustacean, but 
in consequence of my appointment to the Chair of Zoology at 
the Muir Central College, Allahabad, this project of a mono- 
graph has had to be abandoned. Since the description, so 
far as it goes, is fairly complete and intelligible, I have 
thought it worth while to publish it, together with a few 
notes on other parts of the anatomy of Squilla. 
As is well known, the general text-book statement that 
antennal glands are characteristic of adult Malacostraca in 
the same way that maxillary glands are of Entouiostraca 
now admits of many exceptions, since maxillary glands have 
been found in a number of undoubted Malacostracan genera. 
Maxillary glands have been described in adult forms of 
Leptostraca (X e ball a, Claus [7]), of Syncarida (An asp ides 
[3]), of Tanaidacea (Apseudes, Claus [8]), of Isopoda 
(Bopyrus, Gyge, Porcellio, Ligia, A sell us, Rogen- 
hofer [21]), and of Stomatopoda (Squilla, Kowalevsky [14]). 
Since the researches of Grobben (10), Marchal (17), Kingsley 
(13), AVaite (23), and others have demonstrated the high, 
degree of complexity attained by the antennal glands in the 
higher and^larger Malacostraca, it is perhaps surprising that 
the condition of the glands in the large-sized and, in many 
respects, highly developed and aberrant Squillidge should not 
hitherto have attracted the attention of zoologists, especially 
in view of the statement of Kowalevsky (14) that the glands 
are maxillary and not antennal. However, apart from the 
rough figure by Claus (4, Taf. iv, fig. 8) of the maxillary 
glands in a late Stomatopod larva, the bald statement of 
Kowalevsky that they exist in the adult Squilla, and the pre- 
liminary description of these glands which I read (25) before 
Section D at the 1911 meeting of the British Association for 
the Advancement of Science (Portsmouth), nothing has been 
published on the subject. 
As material for this inquiry, I employed adult specimens 
of Squilla desmarestii (Risso) and Erichthus larvm of 
Lysiosquilla eusebia (2 mm. in length, and comparable 
with the figures 191 a and b shown in Caiman [3]), obtained 
