10 DISTRIBUTION OF HEMOGLOBIN AND ALLIED SUBSTANCES 



have been found in the blood, 

 parentheses or brackets. 



A. HEMOCYANIN. 

 Crustacea: 



Homarus (Fredericq). 



Astacus (Krukenberg). 



Cancer (Krukenberg). 



Carcinua (Jolyet and Regnard). 



Nephrops [Halliburton], 



Eripliia (Krukenberg). 



Squilla (Krukenberg). 



Maia (Krukenberg). 

 Arachnida: 



Scorpio (Lankester). 



Limulus (Laakester). 

 Gasteropoda: 



Cassidaria (Krukenberg). 



Fissurella (Krukenberg). 



Haliotis (Krukenberg). 



Helix (Fr&lericq). 



Murex (Krukenberg). 



Turbo (Krukenberg). 

 Cephalopoda : 



Octopus (Frddericq). 



Sepia (Krukenberg). 



Eledone (Krukenberg). 



Loligo (Krukenberg). 



B. HEMOGLOBIN. 

 Vertebrata: 



In special corpuscles in all except Amphi- 

 oxus (Lankester). 



Leptocephalus (Lankester). 

 Crustacea: 



Daphnia (Lankeater). 



Chirocephalus (Lankester). 



Apus (Regnard and Blanchard). 



Lernanthropus (Van Beneden). 



Clavella (Van Beneden). 



Cypris (Regnard and Blanchard). 



Marine parasitic crustacean, undescribed 



(Van Beneden). 

 Insecta: 



Chironomus (Lankester). 



Musca domestica (MacMunn). 

 Mollusca: 



Planorbis (Lankester). 



Area (Lankester). 



Solen (Lankester). 

 Chsetopoda: 



Lumbricus (Lankester). 



Eunice (Lankester). 



Cirrhatulus (Lankester). 



Nereis (Lankester). 



Terebella (Lankester). 



Tubifex (Lankester). 



Arenicola (Lankester). 



The name of the authority is given in 



B. HEMOGLOBIN. Continued. 

 Chsetopoda Continued. 



Limnodrilus (Lankester). 



Lurabriculua (Lankester). 



Nais (Lankester). 



Chatogaster (Lankester). 



Glycera (Lankester). 



Capitella (Lankester). 



Euchytrachus (Lankester). 



Aphrodite (MacMunn). 

 Gephyrea: 



Phoronis (Lankester). 



Thallasena (Lankester). 



Hamingia (Lankester). 

 Nemertina: 



Folia (Lankester). 



Other nemertinea (Hubrecht, 1875). 

 Hirudinea: 



Nephilis (Lankester). 



Hirudo (Lankester). 

 Echinodennata: 



An ophiurid (Foettinger, 1880). 



In all invertebrates hemoglobin occurs 

 in solution in the blood plasma, ex- 

 cept in Solen, Glycera, Capitella, 

 Phoronis, where it is contained in 

 special corpuscles. 



C. CHLOROCRUORIN. 



Chsetopoda: 



Siphonostomum (Lankester). 

 Sabella (Lankester). 

 Chloronema (Quatrefages). 



D. HEMERTTHRIN. 



Gephyrea: 



Phascolosoma (Schwalbe). 

 Sipunculus (Krukenberg). 

 Phoronis (Krukenberg). 



E. CHLOROPHYL. 



Insecta: 



Various butterflies and moths (Poulton) 



F. TETRONERYTHRIN. 



Crustacea: 



Homarus [Halliburton]. 

 Carcinus [Halliburton]. 

 Astacus [Halliburton]. 

 Nephrops [Halliburton]. 



G. Various colored granules are described in the 



corpuscles of Holothurians and Sea-urchins 

 (Geddes). The blood of Patella is described 

 as being of an orange color (Krukenberg). 



This list has been increased by subsequent communications, as will 

 be seen by the context. 



Ilowell (Studies from the Biological Laboratory, Johns Hopkins 

 University, 1884, in, 284) studied the hemocyanin of the blood of Limulus 

 polyphemus, Callinectes hastatus, and Cucumccria sp.?, and in comparing the 

 condition of the respiratory oxygen he found the O to be in more stable 

 combination in the first, and also that the hemocyanin of this organism 

 coagulates at higher temperature. MacMunn (Quart. Jour. Microscop. 

 Science, 1885, xxv, 469) in his studies of the chromatology of the bloods of 

 certain invertebrates, chiefly of the spectroscopic characters, states that 



